================================================================================ UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 -------------------- FORM 10-Q |X| QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2001 |_| TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES AND EXCHANGE ACT OF 1934 Commission file number 0-27231 -------------------- WIRELESS FACILITIES, INC. (Exact name of Registrant as specified in its charter) Delaware 13-3818604 (State or other jurisdiction of (I.R.S. Employer incorporation or organization) Identification No.) 4810 Eastgate Mall San Diego, CA 92121 (858) 228-2000 (Address, including zip code, and telephone number, including area code, of Registrant's principal executive offices) -------------------- Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes |X| No |_| As of November 6, 2001 there were 46,948,177 shares of the Registrant's $0.001 par value Common Stock outstanding. ================================================================================

WIRELESS FACILITIES, INC. FORM 10-Q FOR THE QUARTER ENDED SEPTEMBER 30, 2001 INDEX Page No. ---- PART I. FINANCIAL INFORMATION Item 1. Financial Statements ......................................................................................... 3 Consolidated Balance Sheets as of December 31, 2000 (audited) and September 30, 2001 (unaudited) ............. 3 Consolidated Statements of Operations for the Three and Nine Months Ended September 30, 2000 and 2001 (unaudited) .................................................................................................. 4 Consolidated Statements of Cash Flows for the Nine Months Ended September 30, 2000 and 2001 (unaudited) .................................................................................................. 5 Notes to Consolidated Financial Statements (unaudited) ....................................................... 6 Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations ........................ 10 Item 3. Quantitative and Qualitative Disclosures About Market Risk ................................................... 22 PART II. OTHER INFORMATION Item 1. Legal Proceedings ............................................................................................ 23 Item 2. Changes in Securities and Use of Proceeds .................................................................... 23 Item 6. Exhibits and Reports on Form 8-K ............................................................................. 23 2

PART I. FINANCIAL INFORMATION Item 1. Financial Statements WIRELESS FACILITIES, INC. CONSOLIDATED BALANCE SHEETS (in millions, except par value) December 31, September 30, 2000 2001 -------------- -------------- (Audited) (Unaudited) ASSETS Current assets: Cash and cash equivalents ......................................................... $ 18.5 $ 12.0 Accounts receivable, net .......................................................... 119.1 92.1 Contract management receivables, net .............................................. 20.8 8.0 Income taxes receivable ........................................................... 12.7 5.1 Deferred income tax assets, net ................................................... -- 7.8 Other current assets .............................................................. 14.3 13.5 -------------- -------------- Total current assets ......................................................... 185.4 138.5 Property and equipment, net ............................................................ 20.0 20.1 Goodwill, net .......................................................................... 64.7 56.8 Other intangibles, net ................................................................. 17.1 9.7 Investments in unconsolidated affiliates ............................................... 9.2 8.6 Other assets ........................................................................... 0.7 1.8 -------------- -------------- Total assets ................................................................. $ 297.1 $ 235.5 ============== ============== LIABILITIES AND STOCKHOLDERS' EQUITY Current liabilities: Accounts payable .................................................................. $ 15.1 $ 10.4 Accrued expenses .................................................................. 17.6 12.0 Contract management payables ...................................................... 9.2 5.4 Billings in excess of costs and profits ........................................... 0.9 0.9 Line of credit payable ............................................................ 24.9 23.0 Notes payable--current portion .................................................... 1.7 0.2 Capital lease obligations--current portion ........................................ 3.5 4.4 Common stock to be issued ......................................................... -- 7.3 Deferred income tax liabilities, net .............................................. 8.8 -- -------------- -------------- Total current liabilities .................................................... 81.7 63.6 Notes payable--net of current portion .................................................. 0.6 0.5 Capital lease obligations--net of current portion ...................................... 7.0 5.1 Common stock to be issued .............................................................. 8.6 -- Other liabilities ...................................................................... 0.5 4.0 -------------- -------------- Total liabilities ............................................................ 98.4 73.2 -------------- -------------- Minority interest in subsidiary ........................................................ 0.1 0.1 -------------- -------------- Stockholders' equity: Common stock, $0.001 par value, 195.0 shares authorized; 43.3 and 45.3 shares issued and outstanding at December 31, 2000 (audited) and September 30, 2001 (unaudited), respectively ................................... -- -- Preferred Stock, $0.001 par value, 5.0 shares authorized, none outstanding ........ -- -- Additional paid-in capital ........................................................ 156.9 169.4 Retained earnings (accumulated deficit) ........................................... 43.0 (6.7) Accumulated other comprehensive loss, net ......................................... (1.3) (0.5) -------------- -------------- Total stockholders' equity ................................................... 198.6 162.2 -------------- -------------- Total liabilities and stockholders' equity ................................... $ 297.1 $ 235.5 ============== ============== See accompanying notes to unaudited consolidated financial statements. 3

WIRELESS FACILITIES, INC. CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (in millions, except per share amounts) Three months ended Nine months ended September 30, September 30, ------------------ ----------------- 2000 2001 2000 2001 ------ ------ ------ ------ Revenues ................................................................... $ 73.1 $ 54.8 $175.9 $162.2 Cost of revenues ........................................................... 40.8 37.0 99.2 108.6 ------ ------ ------ ------ Gross profit ..................................................... 32.3 17.8 76.7 53.6 Selling, general and administrative expenses ............................... 15.4 15.9 34.7 86.5 Depreciation and amortization .............................................. 2.8 5.6 5.8 16.5 Asset impairment charges ................................................... -- -- -- 12.9 ------ ------ ------ ------ Operating income (loss) .......................................... 14.1 (3.7) 36.2 (62.3) ------ ------ ------ ------ Other income (expense): Interest income (expense), net ........................................ (0.1) (0.9) 0.7 (2.6) Foreign currency gain (loss) .......................................... (0.4) 0.6 (0.3) (1.5) Other, net ............................................................ 0.6 0.1 0.7 (0.7) ------ ------ ------ ------ Net other income (expense) ....................................... 0.1 (0.2) 1.1 (4.8) ------ ------ ------ ------ Income (loss) before minority interest in subsidiary and income taxes .................................................. 14.2 (3.9) 37.3 (67.1) Minority interest in income (loss) of subsidiary ........................... (0.1) -- 0.1 -- Provision (benefit) for income taxes ....................................... 5.3 (1.0) 14.5 (17.4) ------ ------ ------ ------ Net income (loss) ................................................ $ 9.0 $ (2.9) $ 22.7 $(49.7) ====== ====== ====== ====== Net income (loss) per common share: Basic ................................................................. $ 0.21 $(0.06) $ 0.55 $(1.09) Diluted ............................................................... $ 0.17 $(0.06) $ 0.45 $(1.09) Weighted average common shares outstanding: Basic ................................................................. 42.4 46.4 41.4 45.4 Diluted ............................................................... 51.9 46.4 50.3 45.4 See accompanying notes to unaudited consolidated financial statements. 4

WIRELESS FACILITIES, INC. CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (in millions) Nine months ended September 30, ------------------------------- 2000 2001 -------------- -------------- Net cash provided by (used in) operating activities ..................................... $ (37.7) $ 0.4 -------------- -------------- Investing activities: Capital expenditures ............................................................... (3.0) (4.3) Cash paid for acquisitions, net of cash received ................................... (28.2) -- Cash paid for investments .......................................................... (8.9) -- Proceeds from sales of investments ................................................. 34.7 -- -------------- -------------- Net cash used in investing activities ......................................... (5.4) (4.3) -------------- -------------- Financing activities: Proceeds from issuance of common stock ............................................. 9.5 5.2 Repayment of notes payable ......................................................... (0.3) (1.6) Net borrowings from officers ....................................................... 0.6 -- Net borrowing (repayment) under line of credit ..................................... 23.9 (1.9) Repayment of capital lease obligations ............................................. (0.7) (3.8) -------------- -------------- Net cash provided by (used in) financing activities ........................... 33.0 (2.1) -------------- -------------- Effect of exchange rate on cash and cash equivalents .................................... 0.1 (0.5) -------------- -------------- Net decrease in cash and cash equivalents ............................................... (10.0) (6.5) Cash and cash equivalents at beginning of period ........................................ 34.3 18.5 -------------- -------------- Cash and cash equivalents at end of period .............................................. $ 24.3 $ 12.0 ============== ============== Supplemental disclosures of non-cash transactions: Fair value of assets acquired in acquisitions ...................................... $ 85.2 $ -- Cash paid for acquisitions ......................................................... (37.5) -- Issuance of common stock for acquisitions .......................................... (36.8) -- Issuance of notes payable for acquisitions ......................................... (1.5) -- Common stock to be issued .......................................................... (8.6) (7.3) -------------- -------------- Liabilities assumed in acquisitions ................................................ $ 0.8 $ -- ============== ============== Common stock issued for earn-out provision in acquisition .......................... $ 0.9 $ 8.6 Common stock issued under a cashless exercise of warrants .......................... $ 0.2 $ -- Note receivable issued for stock option exercise ................................... $ 0.1 $ -- Note receivable issued for sale of equipment ....................................... $ -- $ 1.0 Property and equipment acquired under capital leases ............................... $ 9.3 $ 2.8 Reduction of accounts receivable in exchange for notes receivable .................. $ -- $ 1.4 Reduction of note payable in lieu of consideration for exercise of warrants ........ $ 0.5 $ -- Supplemental disclosure of cash flow information: Cash paid during the period for interest ........................................... $ 1.0 $ 3.4 Net cash paid (received) during the period for income taxes ........................ $ 10.6 $ (9.3) See accompanying notes to unaudited consolidated financial statements. 5

WIRELESS FACILITIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited) (1) Organization and Summary of Significant Accounting Policies (a) Description of Business Wireless Facilities, Inc. ("WFI") was formed under the laws of the state of New York on December 19, 1994, began operations in March 1995 and was reincorporated in Delaware in 1998. WFI provides a full suite of outsourcing services to wireless carriers and equipment vendors, including the design, deployment and management of client networks. WFI's customers include both early-stage and mature providers of cellular, PCS and broadband data services and equipment. WFI's engagements range from small contracts for the deployment of a single cell site, to large multi-year turnkey contracts. These services are billed either on a time and materials basis or on a fixed price (turnkey), time certain basis. (b) Basis of Presentation The information as of September 30, 2001, and for the three and nine month periods ended September 30, 2000 and 2001 is unaudited. In the opinion of management, these consolidated financial statements include all adjustments, consisting of normal recurring adjustments, necessary for a fair presentation of the results of operations for the interim periods presented. Interim operating results are not necessarily indicative of operating results expected in subsequent periods or for the year as a whole. These consolidated financial statements should be read in conjunction with the consolidated financial statements and the related notes included in WFI's annual consolidated financial statements for the fiscal year ended December 31, 2000, filed on Form 10-K with the Securities and Exchange Commission. The consolidated financial statements include the accounts of WFI and its wholly owned and majority-owned subsidiaries. WFI and its subsidiaries are collectively referred to herein as the "Company." All intercompany transactions have been eliminated in consolidation. Investments accounted for using the cost method include companies in which the Company owns less than 20% and for which the Company has no significant influence. Investments accounted for using the equity method include companies in which the Company owns more than 20% but less than 50%, or for which the Company is considered to have significant influence. (c) Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America require management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. (d) Reclassifications Certain prior period amounts have been reclassified to conform with the current period presentation. (e) New Accounting Pronouncements In July 2001, the Financial Accounting Standards Board ("FASB") issued Statement of Financial Accounting Standards No. 141 (SFAS No. 141), "Business Combinations", and Statement No. 142 (SFAS No. 142), "Goodwill and Other Intangible Assets". SFAS No. 141 supersedes APB Opinion No. 16, "Business Combinations" and SFAS No. 38, "Accounting for Preacquisition Contingencies of Purchases Enterprises" and eliminates pooling-of-interests accounting prospectively. SFAS No. 141 was adopted on July 1, 2001. SFAS No. 142 supersedes APB Opinion No. 17, "Intangible Assets" and changes the accounting for goodwill from an amortization method to an impairment-only approach. Under SFAS No. 142, goodwill will be tested annually and whenever events or circumstances occur indicating that goodwill might be impaired. The provisions of SFAS No. 142 are required to be applied starting with fiscal years beginning after December 15, 2001. Upon adoption of SFAS No. 142, amortization of goodwill recorded for business combinations consummated prior to July 1, 2001 will cease, and intangible assets acquired prior to July 1, 2001 that do not meet the criteria for recognition under SFAS No. 141 will be reclassified to goodwill. The adoption of SFAS No. 141 did not have an impact on the Company's financial position or results of operations. The Company 6

will adopt SFAS No. 142 on January 1, 2002, upon which time the Company will cease amortizing goodwill and separately identifiable intangibles in accordance with the guidelines set forth in the standard. As of the date of adoption, the Company expects remaining unamortized goodwill and unamortized other intangible assets to be approximately $54.6 million and $8.6 million, respectively, all of which will be subject to the transition guidelines of SFAS No. 142. The Company is currently evaluating the impact that the adoption of SFAS No. 142 will have on its results of operations and financial position. In August 2001, the FASB issued Statement of Financial Accounting Standards No. 143 (SFAS No. 143), "Accounting for Asset Retirement Obligations," which addresses financial accounting and reporting for obligations associated with the retirement of tangible long-lived assets and for the associated asset retirement costs. The standard applies to tangible long-lived assets that have a legal obligation associated with their retirement that results from the acquisition, construction or development or normal use of the asset. SFAS No. 143 requires that the fair value of a liability for an asset retirement obligation be recognized in the period in which it is incurred if a reasonable estimate of fair value can be made. The fair value of the liability is added to the carrying amount of the associated asset and this additional carrying amount is depreciated over the remaining life of the asset. The liability is accreted at the end of each period through charges to operating expense. The provisions of SFAS No. 143 are required to be applied during the quarter ending March 31, 2003. To accomplish this, the Company must identify all legal obligations for asset retirement obligations, if any, and determine the fair value of these obligations on the date of adoption. The determination of fair value is complex and will require the Company to gather market information and develop cash flow models. Additionally, the Company will be required to develop processes to track and monitor these obligations. It is not anticipated that the financial impact of this statement will have a material effect on our consolidated financial statements. In October 2001, the FASB issued Statement of Financial Accounting Standards No. 144 (SFAS No. 144), "Accounting for the Impairment or Disposal of Long-Lived Assets," which addresses financial accounting and reporting for the impairment or disposal of long-lived assets. While SFAS No. 144 supersedes SFAS No. 121, "Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets to Be Disposed Of," it retains many of the fundamental provisions of SFAS No. 121, including the recognition and measurement of the impairment of long-lived assets to be held and used, and the measurement of long-lived assets to be disposed of by sale. SFAS No. 144 also supersedes the accounting and reporting provisions of Accounting Principles Board Opinion No. 30 (APB No. 30), "Reporting the Results of Operations--Reporting the Effects of Disposal of a Segment of a Business, and Extraordinary, Unusual and Infrequently Occurring Events and Transactions," for the disposal of a segment of a business. However, it retains the requirement in APB No. 30 to report separately discontinued operations and extends that reporting to a component of an entity that either has been disposed of (by sale, abandonment, or in a distribution to owners) or is classified as held for sale. SFAS No. 144 is effective for fiscal years beginning after December 15, 2001. At this time, the Company does not anticipate that the adoption of SFAS No. 144 will have a material effect on the Company's consolidated financial statements. (2) Asset Impairment Charges As required by SFAS No. 121, "Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets to Be Disposed Of," the Company reviews long-lived assets and intangibles for impairment when events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. The recent slowdown in the economy, current economic conditions and visible trends in the telecommunications industry, triggered an impairment evaluation by the Company of its goodwill and other intangible assets in the second quarter of fiscal 2001. Based on the Company's analyses of the results of operations and projected future cash flows associated with certain goodwill and other intangible assets, the Company determined that impairment existed. Accordingly, the Company recorded a $12.9 million impairment charge in the second quarter of fiscal 2001 determined as the amount by which the carrying amount of the assets exceeded the present value of the estimated future cash flows. Assets determined to be impaired included goodwill and contract and workforce intangibles approximating $8.2 million in the Company's design and deployment segment and $4.7 million in its network management segment. There were no impairment charges recorded during the third quarter of fiscal 2001. The Company does not believe these write-downs will impair or affect the Company's ongoing operations. (3) Earn-out Provision for Davis Bay, LLC Acquisition In June 2000, the Company acquired the assets of Davis Bay, LLC, a Washington State limited liability company, for $3.0 million in cash and stock. Of the total purchase price, $2.4 million was paid through the issuance of approximately 49,000 shares of the Company's common stock. Included in the asset purchase agreement was an earn-out provision whereby the Company agreed to pay Davis Bay additional consideration contingent on certain quarterly earnings results from existing and potential future contracts secured by Davis Bay for the Company. These earn-out payments were capped at $20.0 million. During the six months ended June 30, 2001, $10.5 million in additional goodwill was recorded under the earn-out provision, bringing the total earn-out up to the $20.0 million maximum allowed under the contract. Effective September 27, 2001, Davis Bay and the 7

Company executed a second amendment to the original asset purchase agreement that replaced the remaining, unpaid earn-out with a final earn-out settlement equal to 1,638,838 shares of the Company's common stock to be issued at the then current market value. Accordingly, the estimated liability of common stock to be issued to Davis Bay related to the earn-out agreement decreased from $10.5 million as of June 30, 2001 to $7.3 million as of September 30, 2001, and goodwill was reduced by $3.2 million. On October 17, 2001, 1,638,838 shares of the Company's common stock were issued to Davis Bay. (4) Other Events As a result of Metricom, Inc.'s filing for bankruptcy protection on July 2, 2001, the Company recorded an allowance for the entire receivable balance of $13.9 million due from Metricom, Inc., in the quarter ended June 30, 2001. The Company announced in February 2001 that Metricom, which abandoned plans for a national rollout of its "Ricochet" wireless modem service, had suspended its contract with the Company for engineering services. On July 19, 2001, the Company executed an amendment to its credit facility which, among other items, changed the minimum EBITDA covenant to exclude unusual charges up to a specified amount with respect to first and second quarters of the Company's fiscal 2001 financial results. On August 29, 2001, one of our customers, US Wireless, filed for bankruptcy protection. The Company had recorded an allowance of $1.3 million for its receivable balances in the second quarter of fiscal 2001. (5) Net Income (Loss) Per Common Share The Company calculates net income (loss) per share in accordance with SFAS No. 128, "Earnings Per Share." Under SFAS No. 128, basic net income (loss) per common share is calculated by dividing net income (loss) by the weighted-average number of common shares outstanding during the reporting period. Diluted net income (loss) per common share reflects the effects of potentially dilutive securities. Weighted average shares used to compute net income (loss) per share are presented below (in millions): Three months ended Nine months ended September 30, September 30, ------------------ ------------------- 2000 2001 2000 2001 ------ ------ ------ ------ Weighted-average shares, basic .................... 42.4 46.4 41.4 45.4 Dilutive effect of stock options .................. 8.6 -- 7.9 -- Dilutive effect of warrants ....................... 0.9 -- 1.0 -- ------ ------ ------ ------ Weighted-average shares, diluted .................. 51.9 46.4 50.3 45.4 ====== ====== ====== ====== Options to purchase 0.6 million and 4.2 million shares of common stock for the three months ended September 30, 2000 and 2001, respectively, were not included in the calculation of diluted net income (loss) per share because the effect of these instruments was anti-dilutive. Options to purchase 1.2 million and 4.8 million shares of common stock for the nine months ended September 30, 2000 and 2001, respectively, were not included in the calculation of diluted net income per share because the effect of these instruments was anti-dilutive. (6) Segment Information The Company's operations are organized along service lines and include three reportable industry segments: Design and Deployment, Network Management, and Business Consulting. Due to the nature of these services, the amount of capital assets used in providing services to customers is not significant. Revenues and operating income (loss) provided by the Company's industry segments for the three and nine months ended September 30, 2000 and 2001 are as follows (in millions): Three months ended Nine months ended September 30, September 30, ------------------ ------------------- 2000 2001 2000 2001 ------ ------ ------ ------ Revenues: Design and deployment ........................ $ 58.0 $ 42.4 $142.3 $123.8 Network management ........................... 12.8 10.0 28.4 32.1 Business consulting .......................... 2.3 2.4 5.2 6.3 ------ ------ ------ ------ Total revenues .......................... $ 73.1 $ 54.8 $175.9 $162.2 ====== ====== ====== ====== 8

Operating income (loss): Design and deployment ........................ $ 11.2 $(5.3) $ 26.4 $(50.9) Network management ........................... 2.3 1.1 7.8 (10.4) Business consulting .......................... 0.6 0.5 2.0 (1.0) ------ ------ ------ ------ Total operating income (loss) ........... $ 14.1 $(3.7) $ 36.2 $(62.3) ====== ====== ====== ====== Revenues derived by geographic region are as follows (in millions): Three months ended Nine months ended September 30, September 30, ------------------ ------------------- 2000 2001 2000 2001 ------ ------ ------ ------ Revenues: U.S. ......................................... $ 51.1 $ 35.5 $ 128.4 $ 106.9 Central and South America .................... 17.8 14.4 38.3 35.7 Europe, Middle East and Africa ............... 4.2 4.9 9.2 19.6 ------ ------ ------- ------- Total revenues .......................... $ 73.1 $ 54.8 $ 175.9 $ 162.2 ====== ====== ======= ======= (7) Subsequent Events On October 10, 2001, the Company executed an agreement to sell $35.0 million of its Series A Convertible Preferred Stock in a private placement to investment funds managed by Oak Investment Partners. Pursuant to the agreement, on October 29, 2001, the investment funds managed by Oak Investment Partners purchased an aggregate of 63,637 shares of Series A Convertible Preferred Stock for a common stock equivalent price of $5.50 per share. The shares of Series A Convertible Preferred Stock have a liquidation preference and price anti-dilution protection. These shares are not registered under the Securities Act of 1933 and may not be offered or sold in the United States absent registration or applicable exemption from registration requirements. Each share of Series A Convertible Preferred Stock is initially convertible into 100 shares of common stock at the option of the holder at any time subject to certain provisions in the agreement. After July 2004, the Series A Convertible Preferred Stock will automatically convert into shares of the Company's common stock if and when the Company's common stock trades at or above $11.00 per share for 30 consecutive days after that date. Oak Investment Partners agreed to a lockup with respect to the shares of Series A Convertible Preferred Stock (and the underlying shares of common stock). The lockup will expire in stages beginning 18 months from October 29, 2001. On October 30, 2001, the Company received $35.0 million pursuant to this agreement. Under the agreement for the sale and purchase of the entire issued share capital of Questus Limited, dated August 29, 2000, the Company agreed to issue additional stock to the former Questus shareholders if the value of our common stock decreased to less than the lower collar amount, which is equivalent to 50% of the price at which the shares were originally issued pursuant to the agreement. As of August 29, 2001, the last day of the escrow period, based on the calculation set forth in the agreement, the Company's stock price was less than the lower collar amount, which triggered the payment of additional shares of our common stock under the agreement. Pursuant to the agreement, the Company will issue an aggregate of 146,806 shares of its common stock based on this lower collar adjustment. 9

Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations This report contains forward-looking statements. These statements relate to future events or our future financial performance. In some cases, you can identify forward-looking statements by terminology such as "may," "will," "should," "expect," "plan," "anticipate," "believe," "estimate," "predict," "potential" or "continue," the negative of such terms or other comparable terminology. These statements are only predictions. Actual events or results may differ materially. Although we believe that the expectations reflected in the forward-looking statements are reasonable, we cannot guarantee future results, levels of activity, performance or achievements. Moreover, neither we, nor any other person, assume responsibility for the accuracy and completeness of the forward-looking statements. We are under no obligation to update any of the forward-looking statements after the filing of this Quarterly Report on Form 10-Q to conform such statements to actual results or changes in our expectations. The following discussion should be read in conjunction with our consolidated financial statements and the related notes and other financial information appearing elsewhere in this Form 10-Q. Readers are also urged to carefully review and consider the various disclosures made by us which attempt to advise interested parties of the factors which affect our business, including without limitation to the disclosures made under the caption "Management's Discussion and Analysis of Financial Condition and Results of Operations," under the caption "Risk Factors," and the audited consolidated financial statements and related notes included in our Annual Report filed on Form 10-K for the year ended December 31, 2000 and other reports and filings made with the Securities and Exchange Commission. Overview Wireless Facilities, Inc. offers network business consulting, network planning, design and deployment, and network operations and maintenance services to the wireless telecommunications industry. For the nine months ended September 30, 2001, our design and deployment, network management and business consulting segments contributed to 76%, 20% and 4% of our revenues, respectively. During 2000, we formed a subsidiary in the United Kingdom, Wireless Facilities International, Ltd. ("WFIL"). WFIL began servicing existing contracts and entering into new contracts in Europe, the Middle East and Africa ("EMEA") in April 2000. These contracts include services performed for many of the latest wireless technologies, including UMTS (Universal Mobile Telephone Service) broadband wireless applications, and voice and video applications. Revenues from our international operations contributed 34% of our total revenues for the nine months ended September 30, 2001. Revenues from network planning, design and deployment contracts are primarily fixed price contracts which are recognized using the percentage-of-completion method. Under the percentage-of-completion method of accounting, expenses on each project are recognized as incurred, and revenues are recognized based on a comparison of the current costs incurred for the project to date compared to the then estimated total costs of the project from start to completion. Accordingly, revenue recognized in a given period depends on the costs incurred on each individual project and the current estimate of the total costs to complete a project, determined at that time. As a result, gross margins for any single project may fluctuate from period to period. The full amount of an estimated loss is charged to operations in the period it is determined that a loss will be realized from the performance of a contract. For business consulting, network planning, design and deployment contracts offered on a time and expense basis, we recognize revenues as services are performed. We typically charge a fixed monthly fee for ongoing radio frequency optimization and network operations and maintenance services. With respect to these services, we recognize revenue as services are performed. Cost of revenues includes direct compensation and benefits, living and travel expenses, payments to third-party sub-contractors, allocation of overhead, costs of expendable computer software and equipment, and other direct project-related expenses. Selling, general and administrative expenses include compensation and benefits, computer software and equipment, facilities expenses and other expenses not related directly to projects. Our sales personnel have, as part of their compensation package, incentives based on their productivity. As of December 31, 2000, we had completed the first phase of implementing a new financial management and accounting software program in our domestic operations. We completed the same software program implementation in Mexico by the second quarter of fiscal 2001 and as of September 30, 2001, we have started to plan the initial phases in the United Kingdom with anticipated completion by first quarter of fiscal 2002. Such software is expected to better accommodate our growth. We expect to incur expenses in subsequent periods related to licensing the software package and related personnel costs associated with completing its implementation in our domestic and international operations. We may incur expenses related to a given project in advance of the commencement of the project as we increase our personnel to work on the project. New hires typically undergo training on our systems and project management process prior to being deployed on a project. 10

Due to the recent downturn in the financial markets in general, and specifically within the telecommunications industry, many of our customers are having trouble obtaining funding in the capital markets to fund the expansion of their businesses, including telecom network deployments and upgrades. The current volatility of the financial markets and slowdown in the U.S. economy has also intensified the uncertainty experienced by many of our customers, who are finding it increasingly difficult to predict demand for their products and services. As a result, many of our customers have and continue to slow and postpone the deployment of new wireless networks and the development of new technologies and products, which has reduced the demand for our services. Some of our customers have recently cancelled or suspended their contracts with us and many of our customers or potential customers have postponed entering into new contracts for our services. For example, during the first quarter of 2001, we announced that we received notice of contract suspension and termination from Metricom, Inc. Also due to the difficult financing and economic conditions, some of our customers may not be able to pay us for services that we have already performed. If we are not able to collect amounts owed to us, we may be required to write-off or convert significant amounts of our accounts receivable. For example, three of our customers, Metricom, Inc., Advanced Radio Telecom and US Wireless filed for bankruptcy protection this year. This caused us to recognize bad debt expense of $3.5 million for Advanced Radio Telecom in the first quarter of fiscal 2001, and $13.9 million for Metricom, Inc. and $1.3 million for US Wireless in the second quarter of fiscal 2001, which thereby negatively affected our profitability. Also, some of our contracts with our customers include billing milestones, whereby we do not bill for work performed until certain milestones are reached. However, we recognize revenue under the percentage-of-completion method of accounting. Whereby, if a contract is terminated by a customer or modified before a milestone is reached, we generally will be required to renegotiate the terms of payment for work performed but not yet billed. As a result of the market conditions described above, we began to experience this during fiscal 2001 with a number of our contracts that contain billing milestones. Due to the circumstances surrounding such cancellations or modifications and the financial condition of the related customers, the amount we ultimately collect from such customers may be, and often is, discounted from the amount we have previously recorded in unbilled accounts receivable and revenue. Because we are not able to reduce our costs as fast as our revenues may decline, our costs as a percentage of revenues may increase and, correspondingly, our net earnings may decline disproportionately to any decreases in revenues. We have experienced this challenge particularly with respect to managing our employee base, and this has resulted in underutilization of employees due to the sudden reduction in the demand for our services during fiscal 2001. In response to these factors and the lack of visibility and uncertain market conditions, we have taken steps and are continuing to take steps to reduce our level of expenditures. Specifically, we have reduced our headcount by approximately 19% since December 31, 2000. We have also implemented a more stringent expenditure approval policy, in an effort to further reduce our costs. Additionally, we expect to continue to review our internal processes throughout 2001 and make further adjustments as necessary. Results of Operations Comparison of Results for the Three Months Ended September 30, 2000 to the Three Months Ended September 30, 2001 Revenues. Revenues decreased 25% from $73.1 million for the three months ended September 30, 2000 to $54.8 million for the three months ended September 30, 2001. The $18.3 million decrease was primarily attributable to the termination and cancellation of certain contracts following the continued downturn and uncertainty in the economy and the wireless telecommunications industry. Cost of Revenues. Cost of revenues decreased 9% from $40.8 million for the three months ended September 30, 2000 to $37.0 million for the three months ended September 30, 2001, primarily due to a corresponding reduction in contracts. Gross profit was 44% of revenues for the three months ended September 30, 2000 compared to 32% for the three months ended September 30, 2001. The decrease in gross profit is due primarily to the termination and cancellation of higher margin contracts and continued pressure associated with competitive pricing demands resulting from capital spending challenges within the wireless telecommunications industry. Selling, General and Administrative Expenses. Selling, general and administrative expenses increased 3% from $15.4 million for the three months ended September 30, 2000 to $15.9 million for the three months ended September 30, 2001. As a percentage of revenues, selling, general and administrative expenses increased from 21% for the three months ended September 30, 2000 to 29% for the three months ended September 30, 2001. The increase was primarily due to higher fixed costs associated with our domestic and international expansion compared to a lower revenue base, partially offset by improved domestic utilization rates. Depreciation and Amortization Expense. Depreciation and amortization expense increased 100% from $2.8 million for the three months ended September 30, 2000 to $5.6 million for the three months ended September 30, 2001. The increase is primarily due to amortization of goodwill and other identifiable intangibles resulting from our acquisitions completed subsequent to September 30, 2000. 11

Net Other Income (Expense). For the three months ended September 30, 2000, net other income was $0.1 million as compared to net other expense of $0.2 million for the three months ended September 30, 2001. The change is primarily attributable to higher interest expense resulting from increased debt outstanding during the periods under comparison, lower other income and interest income, offset by higher foreign currency gain resulting from increased international activity and associated fluctuations in foreign exchange rates. Provision (Benefit) for Income Taxes. Our effective income tax rate decreased from 37% for the three months ended September 30, 2000 to 26% for the three months ended September 30, 2001. The decrease was primarily attributable to a change in projected earnings combined with an increase in the valuation allowance on the losses from certain foreign operations. Comparison of Results for the Nine Months Ended September 30, 2000 to the Nine Months Ended September 30, 2001 Revenues. Revenues decreased 8% from $175.9 million for the nine months ended September 30, 2000 to $162.2 million for the nine months ended September 30, 2001. The $13.7 million decrease was primarily attributable to the recent decline in the economy and specifically, in wireless telecommunications infrastructure spending, which resulted in the suspension and termination of certain contracts, including our contracts with Metricom, Inc. and Advanced Radio Telecom, partially offset by our expansion into international markets. Revenues from international markets comprised 27% of our total revenues during the nine months ended September 30, 2000 compared to 34% of our total revenues during the nine month period ended September 30, 2001. Cost of Revenues. Cost of revenues increased 9% from $99.2 million for the nine months ended September 30, 2000 to $108.6 million for the nine months ended September 30, 2001 and gross profit was 44% of revenues for the nine months ended September 30, 2000 compared to 33% for the nine months ended September 30, 2001. The increase in cost of revenues and decline in gross profit is primarily attributable to the recent decline in the economy and specifically, in wireless telecommunications infrastructure spending, which resulted in the suspension and termination of certain contracts, including our contracts with Metricom, Inc. and Advanced Radio Telecom. The sudden and unexpected loss of these customers caused the expected overall margin on the related contracts to decrease and therefore a cumulative entry was recorded in the first half of fiscal 2001 to adjust the margin recorded to date to the expected final margin on the contracts. Gross profit also decreased due to costs incurred to demobilize staff as well as work performed on milestones that could not be completed and billed. Additionally, we have begun to experience pressure associated with competitive pricing demands within the wireless telecommunications industry. Selling, General and Administrative Expenses. Selling, general and administrative expenses increased 149% from $34.7 million for the nine months ended September 30, 2000 to $86.5 million for the nine months ended September 30, 2001. As a percentage of revenues, selling, general and administrative expenses increased from 20% for the nine months ended September 30, 2000 to 53% for the nine months ended September 30, 2001. The increase is due primarily to higher administrative costs to accommodate our domestic and international growth, combined with lower utilization rates caused by the recent downturn in the wireless telecommunications industry. Additionally, bad debt expense of $21.2 million, which included allowances for receivables due from Metricom, Inc. of $13.9 million, Advanced Radio Telecom of $3.1 million, US Wireless of $1.3 million and certain unusual charges of $3.6 million were recorded during the second quarter of fiscal 2001. These unusual charges included accruals for estimated contractor liability in our Mexico subsidiary of $2.2 million and the estimated loss on unused office space of $1.4 million. Depreciation and Amortization Expense. Depreciation and amortization expense increased 184% from $5.8 million for the nine months ended September 30, 2000 to $16.5 million for the nine months ended September 30, 2001. The increase is primarily due to the amortization of goodwill and other identifiable intangibles resulting from our acquisitions completed subsequent to September 30, 2000. Asset Impairment Charges. For the nine months ended September 30, 2001, asset impairment charges totaled $12.9 million, compared to no charge for the nine months ended September 30, 2000. The recent slowdown in the economy, current economic conditions and visible trends in the telecommunications industry, triggered an impairment evaluation by the Company of its goodwill and other intangible assets in the second quarter of fiscal 2001. Based on the Company's analyses of the results of operations and projected future cash flows associated with certain goodwill and other intangible assets, the Company determined that impairment existed. Accordingly, the Company recorded a $12.9 million impairment charge in the second quarter of fiscal 2001 determined as the amount by which the carrying amount of the assets exceeded the present value of the estimated future cash flows. Assets determined to be impaired included goodwill and contract and workforce intangibles approximating $8.2 million in the Company's design and deployment segment and $4.7 million in its network management segment. There were no impairment charges recorded during the third quarter of fiscal 2001. The Company does not believe these write-downs will impair or affect the Company's ongoing operations. 12

Net Other Income (Expense). For the nine months ended September 30, 2000, net other income was $1.1 million compared to net other expense of $4.8 million for the nine months ended September 30, 2001. This increase in expense of $5.9 million was primarily attributable to higher interest expense resulting from increased debt outstanding during the periods under comparison, higher foreign currency transaction losses due to increased international activity combined with foreign currency exchange rate fluctuations during the nine months ended September 30, 2001, and $1.1 million realized loss on available-for-sale investment securities related to the bankruptcy filing of Advanced Radio Telecom which was recorded in the first quarter of fiscal 2001. Provision (Benefit) for Income Taxes. Our effective income tax rate decreased from 39% for the nine months ended September 30, 2000 to 26% for the nine months ended September 30, 2001. The decrease was primarily attributable to a change in projected earnings which included the effect of certain asset impairment and bad debt charges recorded in the second quarter of fiscal 2001, combined with an increase in the valuation allowance on the losses from certain foreign operations. Earn-out Provision for Davis Bay, LLC Acquisition In June 2000, the Company acquired the assets of Davis Bay, LLC, a Washington State limited liability company, for $3.0 million in cash and stock. Of the total purchase price, $2.4 million was paid through the issuance of approximately 49,000 shares of the Company's common stock. Included in the asset purchase agreement was an earn-out provision whereby the Company agreed to pay Davis Bay additional consideration contingent on certain quarterly earnings results from existing and potential future contracts secured by Davis Bay for the Company. These earn-out payments were capped at $20.0 million. During the six months ended June 30, 2001, $10.5 million in additional goodwill was recorded under the earn-out provision, bringing the total earn-out up to the $20.0 million allowed under the contract. Effective September 27, 2001, Davis Bay and the Company executed a second amendment to the original asset purchase agreement that replaced the remaining, unpaid earn-out with a final earn-out equal to 1,638,838 shares of the Company's common stock issued at the then current market value. Accordingly, the estimated liability of common stock to be issued related to the earn-out agreement decreased from $10.5 million as of June 30, 2001 to $7.3 million as of September 30, 2001, and goodwill was reduced by $3.2 million. On October 17, 2001, 1,638,838 shares of the Company's common stock were issued to Davis Bay. New Accounting Pronouncements In July 2001, the Financial Accounting Standards Board ("FASB") issued Statement of Financial Accounting Standards No. 141 (SFAS No. 141), "Business Combinations", and Statement No. 142 (SFAS No. 142), "Goodwill and Other Intangible Assets". SFAS No. 141 supersedes APB Opinion No. 16, "Business Combinations" and SFAS No. 38, "Accounting for Preacquisition Contingencies of Purchases Enterprises" and eliminates pooling-of-interests accounting prospectively. SFAS No. 141 was adopted on July 1, 2001. SFAS No. 142 supersedes APB Opinion No. 17, "Intangible Assets" and changes the accounting for goodwill from an amortization method to an impairment-only approach. Under SFAS No. 142, goodwill will be tested annually and whenever events or circumstances occur indicating that goodwill might be impaired. The provisions of SFAS No. 142 are required to be applied starting with fiscal years beginning after December 15, 2001. Upon adoption of SFAS No. 142, amortization of goodwill recorded for business combinations consummated prior to July 1, 2001 will cease, and intangible assets acquired prior to July 1, 2001 that do not meet the criteria for recognition under SFAS No. 141 will be reclassified to goodwill. The adoption of SFAS No. 141 did not have an impact on the Company's financial position or results of operations. The Company will adopt SFAS No. 142 on January 1, 2002, upon which time the Company will cease amortizing goodwill and separately identifiable intangibles in accordance with the guidelines set forth in the standard. As of the date of adoption, the Company expects remaining unamortized goodwill and unamortized other intangible assets to be approximately $54.6 million and $8.6 million, respectively, all of which will be subject to the transition guidelines of SFAS No. 142. The Company is currently evaluating the impact that the adoption of SFAS No. 142 will have on its results of operations and financial position. In August 2001, the FASB issued Statement of Financial Accounting Standards No. 143 (SFAS No. 143), "Accounting for Asset Retirement Obligations," which addresses financial accounting and reporting for obligations associated with the retirement of tangible long-lived assets and for the associated asset retirement costs. The standard applies to tangible long-lived assets that have a legal obligation associated with their retirement that results from the acquisition, construction or development or normal use of the asset. SFAS No. 143 requires that the fair value of a liability for an asset retirement obligation be recognized in the period in which it is incurred if a reasonable estimate of fair value can be made. The fair value of the liability is added to the carrying amount of the associated asset and this additional carrying amount is depreciated over the remaining life of the asset. The liability is accreted at the end of each period through charges to operating expense. The provisions of SFAS No. 143 are required to be applied during the quarter ending March 31, 2003. To accomplish this, the Company must identify all legal obligations for asset retirement obligations, if any, and determine the fair value of these obligations on the date of adoption. The determination of fair value is complex and will require the Company to gather market information and develop cash flow models. Additionally, the Company will be required to develop processes to track and monitor these obligations. It is not anticipated that the financial impact of this statement will have a material effect on our consolidated financial statements. In October 2001, the FASB issued Statement of Financial Accounting Standards No. 144 (SFAS No. 144), "Accounting for the Impairment or Disposal of Long-Lived Assets", which addresses financial accounting and reporting for the impairment or disposal of long-lived assets. While SFAS No. 144 supersedes SFAS No. 121, "Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets to Be Disposed Of", it retains many of the fundamental provisions of SFAS No. 121, including the recognition and measurement of the impairment of long-lived assets to be held and used, and the measurement of long-lived assets to be disposed of by sale. SFAS No. 144 also supersedes the accounting and reporting provisions of Accounting Principles Board Opinion No. 30 (APB 30), "Reporting the Results of Operations--Reporting the Effects of Disposal of a Segment of a Business, and Extraordinary, Unusual and Infrequently Occurring Events and Transactions", for the disposal of a segment of a business. However, it retains the requirement in APB 30 to report separately discontinued operations and extends that reporting to a component of an entity that either has been disposed of (by sale, abandonment, or in a distribution to owners) or is classified as held for sale. SFAS No. 144 is effective for fiscal years beginning after December 15, 2001. At this time, the Company does not anticipate that the adoption of SFAS No. 144 will have a material effect on the Company's consolidated financial statements. 13

Liquidity and Capital Resources Our sources of cash liquidity included cash, cash from operations, amounts available under credit facilities, and other external sources of funds. As of September 30, 2001, we had cash of $12.0 million and had $23.0 million outstanding on our line of credit with a group of financial institutions. On October 30, 2001, the Company received $35.0 million from the investment funds managed by Oak Investment Partners for the sale of its Series A Convertible Preferred Stock in a private placement pursuant to an agreement executed on October 10, 2001. Cash used in or provided by operations is primarily derived from our contracts in process and changes in working capital. Cash used in operations totaled $37.7 million for the nine months ended September 30, 2000 while cash provided by operations totaled $0.4 million for the nine months ended September 30, 2001. Cash used in investing activities totaled $5.4 million and $4.3 million for the nine months ended September 30, 2000 and 2001, respectively. Investing activities for the nine months ended September 30, 2000 consisted primarily of proceeds totaling $34.7 million received from the sale of investments, offset by cash paid of approximately $37.1 million for acquisitions and investments. Cash used in investing activities for the nine months ended September 30, 2001 consisted of capital expenditures. Cash provided by financing activities for the nine months ended September 30, 2000 was $33.0 million, which was primarily derived from net borrowings under the line of credit of $23.9 million and sales of common stock issued through our stock option and employee stock purchase plans of $9.5 million. Cash used in financing activities totaled $2.1 million for the nine months ended September 30, 2001 and consisted primarily of repayment of borrowings under our line of credit, notes payable and capital lease obligations, partially offset by proceeds from the issuance of common stock. As of September 30, 2001, $23.0 million was outstanding under our senior secured credit facility ("line of credit") with a group of financial institutions. The line of credit expires in February 2004. Loans under this line of credit bear interest, at our discretion, at either (i) the greater of the bank prime rate and the Federal Funds Rate plus 0.5%, plus a margin ranging from 0.75% to 1.50%, the ("base rate margin"), or (ii) at the London Interbank Offering Rate ("LIBOR") plus a margin ranging from 1.75% to 2.50%, the ("LIBOR rate margin"). The line of credit is secured by substantially all of our assets. The line of credit agreement contains restrictive covenants, which, among other things, require maintenance of certain financial ratios. On July 19, 2001, we executed an amendment to our line of credit agreement, which among other items, changed the minimum EBITDA covenant to exclude unusual charges up to a specified amount with respect to the first and second quarters of our fiscal 2001 financial results. We have no material cash commitments other than obligations under our credit facilities, promissory notes, and operating and capital leases. Future capital requirements will depend upon many factors, including the timing of payments under contracts and increases in personnel in advance of new contracts. 14

Risk Factors That May Affect Results of Operations and Financial Condition You should carefully consider the following risk factors and all other information contained herein as well as the information included in our Annual Report on Form 10-K for the year ended December 31, 2000, and other reports and filings made with the Securities and Exchange Commission before investing in our common stock. Investing in our common stock involves a high degree of risk. Risks and uncertainties, in addition to those we describe below, that are not presently known to us or that we currently believe are immaterial may also impair our business operations. If any of the following risks occur, our business could be harmed, the price of our common stock could decline and you may lose all or part of your investment. See the note regarding forward-looking statements included at the beginning of Item 2. Management's Discussion and ----------------------------------- Analysis of Financial Condition and Results of Operations. - ---------------------------------------------------------- We expect our quarterly results to fluctuate. If we fail to meet earnings estimates, our stock price could decline. Our quarterly and annual operating results have fluctuated in the past and will vary in the future due to a variety of factors, many of which are outside of our control. The factors outside of our control include: o telecommunications market conditions and economic conditions generally; o the timing and size of network deployments by our carrier customers and the timing and size of orders for network equipment built by our vendor customers; o fluctuations in demand for our services; o the length of sales cycles; o reductions in the prices of services offered by our competitors; and o costs of integrating technologies or businesses that we add. The factors substantially within our control include: o changes in the actual and estimated costs and time to complete fixed-price, time-certain projects; o the timing of expansion into new markets, both domestically and internationally; and o the timing and payments associated with possible acquisitions. Due to these factors, our quarterly revenues, expenses and results of operations have recently varied significantly and could continue to vary significantly in the future. You should take these factors into account when evaluating past periods, and, because of the potential variability due to these factors, you should not rely upon results of past periods as an indication of our future performance. In addition, we may from time to time provide estimates of our future performance. Estimates are inherently uncertain and actual results are likely to deviate, perhaps substantially, from our estimates as a result of the many risks and uncertainties in our business, including, but not limited to, those set forth in these risk factors. We undertake no duty to update estimates if given. In addition, the long-term viability of our business could be negatively impacted if there were a sustained downward trend in our revenues and results of operations. Because our operating results may vary significantly from quarter to quarter based upon the factors described above, results may not meet the expectations of securities analysts and investors, and this could cause the price of our common stock to decline significantly. In recent months, we have experienced a negative impact to our earnings and stock price as a result of the foregoing factors that may cause our quarterly results to fluctuate. We may continue to incur losses for the foreseeable future. Due to the recent downturn in the financial markets generally, and specifically the slowdown in wireless telecommunications infrastructure spending, some of our customers have cancelled or suspended their contracts with us and many of our customers and potential customers have postponed entering into new contracts for our services. The reduction in the availability of capital due to the downturn has also delayed the completion of mergers contemplated by some of our customers, which has resulted in project delays. In addition, unfavorable economic conditions are causing some of our customers to take longer to pay us for services we perform, increasing the average number of days that our receivables are outstanding. Also due to the difficult financing and economic conditions, some of our customers may not be able to pay us for services that we have already performed and three of our customers have filed for bankruptcy protection in recent months. If we are not able to collect amounts due to us, we may be required to write-off significant amounts of our accounts receivable. For example, we recognized bad debt expense of $3.5 15

million during the first quarter of fiscal 2001 due to Advanced Radio Telecom's filing for bankruptcy protection and we recognized bad debt expense of $13.9 million for the entire Metricom, Inc. receivable due to Metricom's filing for bankruptcy protection and $1.3 million for US Wireless during the second quarter of 2001. Because we are not able to reduce our costs as fast as our revenues may decline, our costs as a percentage of revenues may increase and, correspondingly, our net earnings may decline disproportionately to any decrease in revenues. If we restructure our business in an effort to minimize our expenses, we may incur associated charges. As a result of these and other factors, it has become extremely difficult to forecast our future revenues and earnings, and any predictions we make are subject to significant revisions and are very uncertain. Our success is dependent on the continued growth in the deployment of wireless networks, and to the extent that such growth cannot be sustained our business may be harmed. The wireless telecommunications industry has historically experienced a dramatic rate of growth both in the United States and internationally. Recently, however, many telecommunications carriers have been re-evaluating their network deployment plans in response to downturns in the capital markets, changing perceptions regarding industry growth, the adoption of new wireless technologies, and a general economic slowdown in the United States. It is difficult to predict whether these changes will result in a sustained downturn in the telecommunications industry. If the rate of growth continues to slow and carriers continue to reduce their capital investments in wireless infrastructure or fail to expand into new geographies, our business will be significantly harmed. The uncertainty associated with rapidly changing telecommunications technologies may also continue to negatively impact the rate of deployment of wireless networks and the demand for our services. Telecommunications service providers face significant challenges in assessing consumer demand and in acceptance of rapidly changing enhanced telecommunications capabilities. If telecommunications service providers continue to perceive that the rate of acceptance of next generation telecommunications products will grow more slowly than previously expected, they may, as a result, continue to slow their development of next generation technologies. Any significant sustained slowdown will further reduce the demand for our services and adversely affect our financial results. Our revenues will be negatively impacted if there are delays in the deployment of new wireless networks. A significant portion of our revenues is generated from new licensees seeking to deploy their networks. To date, the pace of network deployment has sometimes been slower than expected, due in part to difficulty experienced by holders of licenses in raising the necessary financing, and there can be no assurance that future bidders for licenses will not experience similar difficulties. In addition, uncertainties regarding the availability and allocation of spectrum have caused delays in network deployment. There has also been substantial regulatory uncertainty regarding payments owed to the United States government by past successful wireless bidders, and such uncertainty has also delayed network deployments. In addition, factors adversely affecting the demand for wireless services, such as allegations of health risks associated with the use of mobile phones, could slow or delay the deployment of wireless networks. These factors, as well as delays in granting the use of spectrum, legal decisions and future legislation regulations may slow or delay the deployment of wireless networks, which in turn, could harm our business. If our customers do not receive sufficient financing, our business may be seriously harmed. Some of our customers and potential customers have limited or no operating histories and limited financial resources. These customers often must obtain significant amounts of financing to pay for their spectrum licenses, fund operations and deploy their networks. Other customers of ours rely upon outside financing to pay the considerable costs of deploying their networks. In either instance, we frequently work with these companies prior to their receipt of financing. If these companies fail to receive adequate financing or experience delays in receiving financing, particularly after we have begun working with them, our results of operations may be harmed. In addition, to the extent our customers continue to experience capital constraints, they could place pressure on us to lower the prices we charge for our services. If competitive pressures force us to make price concessions or otherwise reduce prices for our services, then our revenues and margins will decline and our results of operations would be harmed. Our success is dependent on the continued trend toward outsourcing wireless telecommunications services. Our success is dependent on the continued trend by wireless carriers and network equipment vendors to outsource their network design, deployment and management needs. If wireless carriers and network equipment vendors elect to perform more network deployment services themselves, our revenues would likely decline and our business would be harmed. 16

A loss of one or more of our key customers or delays in project timing for key customers could cause a significant decrease in our net revenues. We have derived, and believe that we will continue to derive, a significant portion of our revenues from a limited number of customers. We anticipate that our key customers will change in the future as current projects are completed and new projects begin. The services required by any one customer could be limited by a number of factors, including industry consolidation, technological developments, economic slowdown and internal budget constraints. None of our customers is obligated to purchase additional services from us and most of our contracts with customers can be terminated without cause or penalty by the customer on notice to us. As a result of these factors, the volume of work performed for specific customers is likely to vary from period to period, and a major customer in one period may not use our services in a subsequent period. Accordingly, we cannot be certain that present or future customers will not terminate their network service arrangements with us or significantly reduce or delay their contracts. The consolidation of equipment vendors or carriers could adversely impact our business. Recently, the wireless telecommunications industry has been characterized by significant consolidation activity. This consolidation may lead to a greater ability among equipment vendors and carriers to provide a full suite of network services, and may simplify integration and installation, which could lead to a reduction in demand for our services. Moreover, the consolidation of equipment vendors or carriers could have the effect of reducing the number of our current or potential customers, which could result in bargaining power for our remaining customers. This potential increase in bargaining power could create competitive pressures whereby a particular customer may request our exclusivity with them in a particular market and put downward pressure on the prices we charge for our services. Accordingly, we may not be able to represent some customers who wish to retain our services. We may not be able to hire and retain a sufficient number of qualified engineers or other employees to sustain our growth, meet our contract commitments or maintain the quality of our services. To the extent we continue to grow, our future success will depend on our ability to hire and retain additional highly skilled engineering, managerial, marketing and sales personnel. Competition for such personnel is intense, especially for engineers and project managers, and we may be unable to attract sufficiently qualified personnel in adequate numbers to meet the demand for our services in the future. In addition, as of September 30, 2001, 22% of our employees in the United States were working under H-1B visas. H-1B visas are a special class of nonimmigrant working visas for qualified aliens working in specialty occupations, including, for example, radio frequency engineers. We are aware that the Department of Labor has issued interim final regulations that place greater requirements on H-1B dependent companies, such as WFI, and may restrict our ability to hire workers under the H-1B visa category in the future. In addition, these regulations expose us to significant penalties, including a prohibition on the hiring of H-1B workers, if the Department of Labor deems us noncompliant. In addition, immigration policies are subject to rapid change, and these policies have generally become more stringent since the events of September 11, 2001. For example, the Mexican government will not issue visas to enter Mexico for people of certain nationalities without a prior background check conducted by the Gubernacion office in Mexico City. These policies may restrict our ability to send certain of our employees to Mexico that we deem necessary to sustain the growth of our subsidiary, WFI de Mexico. Any additional significant changes in immigration law or regulations may further restrict our ability to continue to employ or to hire new workers on H-1B visas and otherwise restrict our ability to utilize our existing employees as we see fit, and, therefore, could harm our business. A significant percentage of our revenue is accounted for on a percentage-of-completion basis, which could cause our quarterly results to fluctuate. A significant percentage of our revenue is derived from fixed priced contracts which are accounted for on a percentage-of-completion basis. The portion of our revenue from fixed price contracts accounted for approximately 51% of our revenues for the nine months ended September 30, 2001. With the percentage-of-completion method, in each period we recognize expenses as they are incurred and we recognize revenue based on a comparison of the current costs incurred for the project to date to the then estimated total costs of the project. Accordingly, the revenue we recognize in a given quarter depends on the costs we have incurred for individual projects and our then current estimate of the total remaining costs to complete individual projects. If, in any period, we significantly increase our estimate of the total costs to complete a project, we may recognize very little or no 17

additional revenue with respect to that project. As a result, our gross margin in such period and in future periods may be significantly reduced and in some cases we may recognize a loss on individual projects prior to their completion. For example, in 1999 we revised the estimated costs to complete two large contracts which resulted in a reduction of gross margins by 9.9% in the first quarter of 1999 and 6.9% in the second quarter of 1999. To the extent that our estimates fluctuate over time or differ from actual requirements, gross margins in subsequent quarters may vary significantly from our estimates and could harm our financial results. Similarly, the cancellation or modification of a contract which is accounted for on a percentage-of-completion basis may adversely affect our gross margins for the period during which the contract is modified or cancelled. In the first quarter of fiscal 2001, we experienced such gross margin adjustments related to the suspension and termination of the Metricom and Advanced Radio Telecom contracts. Under certain circumstances, a cancellation or modification of a fixed price contract could also result in our having to reverse revenue that we recognized in a prior period, which could significantly reduce the amount of revenues we recognize for the period in which the adjustment is made. For example, if we have a three year fixed price contract where the contract fee is $1 million and the initial estimated costs associated with the contract are $550,000, and if, during the first year we incur $220,000 in costs related to the contract and correspondingly estimate that the contract is 40% complete, then under the percentage-of-completion accounting method we would recognize 40%, or $400,000 in revenue during the first year of the contract. If, during the second year of the contract the project is terminated with 35% of the services deemed provided to the client, then the total revenue for the project would be adjusted downward to $350,000, and the revenue recognizable during the second year would be the total revenue earned to date, the $350,000 less the revenue previously recognized or $400,000, resulting in a reversal of $50,000 of revenue previously recognized. To the extent we experience additional adjustments such as those described above, our revenues and gross margins will be adversely affected. Our financial results may be harmed if we maintain or increase our staffing levels in anticipation of one or more projects and underutilize our personnel because such projects are delayed, reduced or terminated. Since our business is driven by large, and sometimes multi-year contracts, we forecast our personnel needs for future projected business. If we maintain or increase our staffing levels in anticipation of one or more projects and those projects are delayed, reduced or terminated, we may underutilize these additional personnel, which would increase our general and administrative expenses, reduce our earnings and possibly harm our results of operations. Additionally, due to current market conditions, we are faced with the challenge of managing the appropriate size of our workforce in light of projected demand for our services. If we maintain a workforce sufficient to support a resurgence in demand, then in the meantime our general and administrative expenses will be high relative to our revenues and our profitability will suffer. Alternatively, if we reduce the size of our workforce in response to any decrease in the demand for our services, then our ability to quickly respond to any resurgence in demand will be impaired. As a result, to the extent that we fail to successfully manage this challenge our financial results will be harmed. Our short operating history, our recent growth in expanding services, and the recent and sudden slowdown due to the current economic conditions in our industry limit our ability to forecast operating results. We have generated revenues for only six years and, thus, we have only a short history from which to predict future revenues. This limited operating experience, together with the dynamic market environment in which we operate, including fluctuating demand for our services, reduces our ability to accurately forecast our quarterly and annual revenues. Further, we plan our operating expenses based primarily on these revenue projections. Because most of our expenses are incurred in advance of anticipated revenues, we may not be able to decrease our expenses in a timely manner to offset any unexpected shortfall in revenues. For further financial information relating to our business, see "Management's Discussion and Analysis of Financial Condition and Operating Results." Our operating results may suffer because of competition in our industry. The wireless network services market is highly competitive and fragmented and is served by numerous companies. Many of these competitors have significantly greater financial, technical and marketing resources, generate greater revenues and have greater name recognition and experience than us. We do not know of any competitors that are dominant in our industry. For a more complete description of our competition, see "Business--Competition" in our Annual Report on Form 10-K for the year ended December 31, 2000. 18

We believe that the principal competitive factors in our market include the ability to deliver results within budget and on time, reputation, accountability, project management expertise, industry experience and pricing. In addition, expertise in new and evolving technologies, such as wireless internet services, has become increasingly important. We also believe our ability to compete depends on a number of factors outside of our control, including: o the prices at which others offer competitive services; o the ability and willingness of our competitors to finance customers' projects on favorable terms; o the ability of our customers to perform the services themselves; and o the responsiveness of our competitors to customer needs. We may not be able to compete effectively on these or other bases, and, as a result, our revenues and income may decline. In addition, we have recently begun to face competition from a new class of entrants into the wireless network services market comprised of recently unemployed telecommunications workers who have started their own businesses and are willing to operate at lower profit margins than ours. To the extent that these competitors are able to increase their market share, our business may suffer. We must keep pace with rapid technological changes, market conditions and industry developments to maintain and grow our revenues. The market for wireless and other network system design, deployment and management services is characterized by rapid change and technological improvements. Our future success will depend in part on our ability to enhance our current service offerings to keep pace with technological developments and to address increasingly sophisticated customer needs. We may not successfully develop or market service offerings that respond in a timely manner to the technological advances of our customers and competitors. In addition, the services that we do develop may not adequately or competitively address the needs of the changing telecommunications marketplace. If we are not successful in responding to technological changes, market conditions or industry developments, our revenues may decline and our business may be harmed. Our business operations could be significantly disrupted if we lose members of our management team. Our success depends to a significant degree upon the continued contributions of our executive officers, both individually and as a group. See "Directors and Executive Officers of the Registrant," incorporated by reference into our Annual Report on Form 10-K for the year ended December 31, 2000, for a listing of our executive officers. Our future performance will be substantially dependent on our ability to retain and motivate them. We may not be successful in our efforts to identify, acquire or integrate acquisitions. Our failure to manage risks associated with acquisitions could harm our business. One important component of our business strategy is to expand our presence in new and existing markets by acquiring additional businesses. During 2000, we acquired seven businesses. We are almost continuously engaged in discussions or negotiations regarding the acquisition of businesses or strategic investments in businesses, some potentially material in relation to our size. We may not be able to identify, acquire or profitably manage additional businesses or integrate successfully any acquired businesses without substantial expense, delay or other operational or financial problems. Acquisitions involve a number of risks, including: o diversion of significant time and attention of our management; o difficulty in integrating and absorbing the acquired business, its employees, corporate culture, managerial systems and processes and services; o failure to retain key personnel and employee turnover; o customer dissatisfaction or performance problems with an acquired company; o assumption of unknown liabilities; and o other unanticipated events or circumstances. 19

Our failure to adequately address any of these factors may negatively affect our expected profitability from acquisitions or harm our ability to successfully negotiate or complete future acquisitions. We may not be successful in our efforts to integrate international acquisitions. A key component of our business model is to expand our operations in international markets. International acquisitions pose a challenge, as we must integrate operations despite differences in culture, language and legal environments. To date, we have limited experience with international acquisitions and face risks related to those transactions, including: o difficulties in staffing, managing and integrating international operations due to language, cultural or other differences; o different or conflicting regulatory or legal requirements; o foreign currency fluctuations; and o diversion of significant time and attention of our management. Our failure to address these risks could inhibit or preclude our efforts to pursue or complete international acquisitions. We have recently expanded our operations internationally. Our failure to effectively manage our international operations could harm our business. We currently have international operations, including offices in Brazil, India, Mexico, United Kingdom and Sweden. For the nine months ended September 30, 2001, international operations accounted for approximately 34% of our total revenues. We believe that the percentage of our total revenues attributable to international operations will continue to be significant. We intend to expand our existing international operations and may enter additional international markets, which will require significant management time and financial resources and could adversely affect our operating margins and earnings. In order to expand our international operations, we will need to hire additional personnel and develop relationships with potential international customers. To the extent that we are unable to do so on a timely basis, our growth in international markets will be limited, and our business could be harmed. Our international business operations are subject to a number of material risks, including, but not limited to: o difficulties in building and managing foreign operations; o difficulties in enforcing agreements and collecting receivables through foreign legal systems and addressing other legal issues; o longer payment cycles; o foreign and U.S. taxation issues; o potential weaknesses in foreign economies, particularly in Europe, South America and Mexico; o fluctuations in the value of foreign currencies; and o unexpected domestic and international regulatory, economic or political changes. To date, we have encountered each of the risks set forth above in our international operations. If we are unable to expand and manage our international operations effectively, our business may be harmed. Fluctuations in the value of foreign currencies could harm our profitability. The majority of our international sales are currently denominated in U.S. dollars. Fluctuations in the value of foreign currencies, compared to the U.S. dollar, may make our services more expensive than local service offerings in international locations. This would make our service offerings less price competitive than local service offerings, which could harm our business. To date, our experience with this foreign currency risk has predominately related to the Brazilian real and Mexican 20

peso. In addition, we conduct business in Swedish krona, British pound sterling, and Euro. We do not currently engage in currency hedging activities to limit the risks of currency fluctuations. Therefore, fluctuations in foreign currencies could have a negative impact on the profitability of our global operations, which would harm our financial results. We may encounter potential costs or claims resulting from project performance. Our engagements often involve large scale, highly complex projects. Our performance on such projects frequently depends upon our ability to manage the relationship with our customers, and to effectively manage the project and deploy appropriate resources, including third-party contractors, personnel and our own, in a timely manner. Many of our engagements involve projects that are significant to the operations of our customers' businesses. Our failure to meet a customer's expectations in the planning or implementation of a project or the failure of our personnel or third-party contractors to meet project completion deadlines could damage our reputation, result in termination of our engagement and adversely affect our ability to attract new business. We frequently undertake projects in which we guarantee performance based upon defined operating specifications or guaranteed delivery dates. Unsatisfactory performance or unanticipated difficulties or delays in completing such projects may result in a direct reduction in payments to us, or payment of damages by us, which would harm our business. As of September 30, 2001, executive officers and directors and their affiliates controlled 51% of our outstanding common stock and as a result are able to exercise control over matters requiring stockholder approval. As of September 30, 2001, executive officers and directors and their affiliates beneficially owned, in the aggregate, approximately 51% of our outstanding common stock. In particular, our Chairman, Massih Tayebi, and our Chief Executive Officer, Masood K. Tayebi, beneficially owned, in the aggregate, approximately 45% of our outstanding common stock. In addition, other members of the Tayebi family owned, in the aggregate, approximately 7% of our outstanding common stock. As a result, these stockholders are able to exercise control over matters requiring stockholder approval, such as the election of directors and approval of significant corporate transactions, which include preventing a third-party from acquiring control over us. These transactions may also include those that other stockholders deem to be in their best interests and in which those other stockholders might otherwise receive a premium for their shares. For further information regarding our stock ownership, see "Security Ownership of Certain Beneficial Owners and Management" incorporated by reference into our Annual Report on Form 10-K for the year ended December 31, 2000. Our stock price may be particularly volatile because of our industry. The stock market in general has recently experienced extreme price and volume fluctuations. In addition, the market prices of securities of technology and telecommunications companies have been extremely volatile, and have experienced fluctuations that have often been unrelated to or disproportionate to the operating performance of those companies. These broad market fluctuations could adversely affect the price of our common stock. For further information regarding recent stock trends, see "Market for Registrant's Common Equity and Related Stockholder Matters" in our Annual Report on Form 10-K for the year ended December 31, 2000. Provisions in our charter documents and Delaware law may make it difficult for a third-party to acquire us and could depress the price of our common stock. Delaware corporate law and our certificate of incorporation and bylaws contain provisions that could delay, defer or prevent a change in control of our management or us. These provisions may also discourage proxy contests and make it more difficult for our stockholders to elect directors and take other corporate action. As a result, these provisions could limit the price that investors are willing to pay for shares of our common stock. These provisions include: o authorizing the board of directors to issue preferred stock; o prohibiting cumulative voting in the election of directors; o limiting the persons who may call special meetings of stockholders; o prohibiting stockholder action by written consent; and 21

o establishing advance notice requirements for nominations for election to our board of directors or for proposing matters that can be acted on by stockholders at meetings of our stockholders. We are also subject to certain provisions of Delaware law which could delay, deter or prevent us from entering into an acquisition, including Section 203 of the Delaware General Corporation Law, which prohibits us from engaging in a business combination with an interested stockholder unless specific conditions are met. Item 3. Quantitative and Qualitative Disclosures About Market Risk We are exposed to foreign currency risks due to both transactions and translations between a functional and reporting currency in our Mexican, Brazilian and United Kingdom subsidiaries. We currently do not hedge any of these risks because we do not believe that to do so is justified by the current exposure and the cost at this time. We are exposed to the impact of foreign currency fluctuations due to the operations of and intercompany transactions with our consolidated foreign subsidiaries. While these intercompany balances are eliminated in consolidation, exchange rate changes do affect consolidated earnings. The following table sets forth total amounts owed to our U.S. operations from our Mexican, Brazilian, and United Kingdom subsidiaries at September 30, 2000 and 2001 (denominated in U.S. dollars, in millions): 2000 2001 ----- ----- Mexico ................................ $10.0 $ 9.2 Brazil ................................ $ 1.3 $ 2.4 United Kingdom ........................ $ 2.4 $ 9.0 The potential foreign currency translation losses from a hypothetical 10% adverse change in the exchange rates from the intercompany balances at September 30, 2000 and 2001 are as follows (denominated in U.S. dollars, in millions): 2000 2001 ----- ----- Mexico ................................ $ 1.0 $ 0.9 Brazil ................................ $ 0.1 $ 0.2 United Kingdom ........................ $ 0.2 $ 0.9 In addition, we estimate that a 10% change in foreign exchange rates would impact reported operating profit by approximately $1.0 million and $0.7 million for the nine months ended September 30, 2000 and 2001, respectively. This was estimated using a 10% deterioration factor to the average monthly exchange rates applied to net income or loss for each of the subsidiaries in the respective period. We do not use derivative financial instruments, derivative commodity instruments or other market risk sensitive instruments, positions or transactions. Accordingly, management believes that it is not subject to any material risks arising from changes in interest rates, foreign currency exchange rates, commodity prices, equity prices or other market changes that affect market risk sensitive instruments. As of September 30, 2001, $23.0 million was outstanding under our senior secured credit facility ("line of credit") with a group of financial institutions. The line of credit expires in February 2004. Loans under this line of credit bear interest, at our discretion, at either (i) the greater of the bank prime rate and the Federal Funds Rate plus 0.5%, plus a margin ranging from 0.75% to 1.50%, the ("base rate margin"), or (ii) at the London Interbank Offering Rate ("LIBOR") plus a margin ranging from 1.75% to 2.50%, the ("LIBOR rate margin"). The line of credit is secured by substantially all of our assets. The line of credit agreement contains restrictive covenants, which, among other things, require maintenance of certain financial ratios. On July 19, 2001, we executed an amendment to our line of credit agreement, which among other items, changed the minimum EBITDA covenant to exclude unusual charges up to a specified amount with respect to the first and second quarters of our fiscal 2001 financial results. We do not utilize any derivative financial instruments to hedge the interest rate fluctuation as our balances under the credit facility are borrowed over the short term and we currently retain the ability to pay down amounts borrowed through our operational funds. A hypothetical 10% adverse change in the weighted average interest rate for the nine months ended September 30, 2001 would have increased net loss for the period by approximately $0.1 million. 22

PART II. OTHER INFORMATION Item 1. Legal Proceedings In October 2000, we were notified that Norm Korey, a former employee who was terminated by us, has asserted that he is owed certain commissions and stock options and severance pay from us. We were served with a formal arbitration demand relating to the matter in January 2001. Limited discovery commenced in August 2001. During discovery, Mr. Korey made claims against us for in excess of $6.0 million. We believe the arbitration claims of Mr. Korey are without merit and intend to vigorously defend against them. In June and July 2001, the Company and certain of its directors and officers were named as defendants in five purported class action complaints filed in the United States District Court for the Southern District of New York on behalf of persons and entities who acquired the Company's common stock at various times on or after November 4, 1999. The complaints allege that the registration statement and prospectus dated November 4, 1999, issued by the Company in connection with the public offering of the Company's common stock contained untrue statements of material fact or omissions of material fact in violation of securities laws because the registration statement and prospectus allegedly failed to disclose that the offering's underwriters had (a) solicited and received additional and excessive compensation and benefits from their customers beyond what was listed in the registration statement and prospectus and (b) entered into tie-in or other arrangements with certain of their customers which were allegedly designed to maintain, distort and/or inflate the market price of the Company's common stock in the aftermarket. The actions seek unspecified monetary damages and other relief. On August 8, 2001, the above-referenced lawsuits were consolidated for pretrial purposes with hundreds of similar lawsuits filed against other initial public offering issuers and their underwriters in the Southern District of New York. An initial case management conference was held on September 7, 2001 for all the lawsuits, at which time the court ordered that the time for all defendants to respond to any complaint be postponed until further notice of the Court. The Company believes these lawsuits are without merit and intends to vigorously defend against them. In addition to the foregoing matters, from time to time, we may become involved in various lawsuits and legal proceedings which arise in the ordinary course of business. However, litigation is subject to inherent uncertainties, and an adverse result in these or other matters may arise from time to time that may harm our business. Item 2. Changes in Securities and Use of Proceeds On October 17, 2001, we issued an aggregate of 1,638,838 shares of our common stock, valued at $7.3 million, to Davis Bay, LLC. The shares were issued pursuant to a second amendment to the asset purchase agreement executed on September 27, 2001 by the Company and Davis Bay. The shares were issued pursuant to the exemption from registration provided for under Rule 506 of Regulation D of the Securities Act of 1933, based on the representation by Davis Bay that it is an accredited investor. On October 30, 2001, we issued an aggregate of 63,637 shares of Series A Convertible Preferred Stock, valued at $35.0 million, in a private placement to investment funds managed by Oak Investment Partners. The shares were issued for a common stock equivalent price of $5.50 per share. Each share of Series A Convertible Preferred Stock is initially convertible into 100 shares of common stock at the option of the holder at any time subject to certain provisions in the agreement. After July 2004, the Series A Convertible Preferred Stock will automatically convert into shares of the Company's common stock if and when our common stock trades at or above $11.00 per share for 30 consecutive days after that date. The shares were issued pursuant to the exemption from registration provided for under Rule 506 of Regulation D of the Securities Act of 1933, based on the representation by the purchasers that they are accredited investors. Item 6. Exhibits and Reports on Form 8-K: (a). Exhibits: Exhibit Number Description of Document ------- ----------------------- 4.1 Restated Certificate of Incorporation filed and effective on November 5, 1999. 4.2 Certificate of Designations, Preferences and Rights of Series A Preferred Stock. (b). Reports on Form 8-K: None. 23

SIGNATURES Pursuant to the requirements of the Securities Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. WIRELESS FACILITIES, INC. By: /s/ MASOOD K. TAYEBI, PH.D ----------------------------------------- Masood K. Tayebi, Ph.D. Chief Executive Officer By: /s/ DAN STOKELY ----------------------------------------- Dan Stokely Vice President Corporate Controller and Principle Accounting Officer Date: November 13, 2001 24

EXHIBIT 4.1 AMENDED AND RESTATED CERTIFICATE OF INCORPORATION WIRELESS FACILITIES, INC., a corporation organized and existing under and by virtue of the General Corporation Law of the State of Delaware (the "Corporation"), hereby certifies as follows: 1. The name of the Corporation is Wireless Facilities, Inc. 2. The original name of this Corporation is Wireless Facilities, Inc. and the date of filing the original Certificate of Incorporation of this Corporation with the Secretary of State of the State of Delaware was July 7, 1997. 3. The Amended and Restated Certificate of Incorporation of this Corporation, in the form attached hereto as Exhibit A, has been duly adopted by the Board of Directors and by the stockholders of the corporation in accordance with Sections 228, 242 and 245 of the General Corporation Law of the State of Delaware. 4. The Amended and Restated Certificate of Incorporation so adopted reads in full as set forth in Exhibit A attached hereto and hereby incorporated by reference. IN WITNESS WHEREOF, Wireless Facilities, Inc. has caused this Amended and Restated Certificate of Incorporation to be signed by its Chief Executive Officer and Secretary this 2nd day of November, 1999. /s/ Massih Tayebi ----------------------------------- Massih Tayebi, Ph.D. Chief Executive Officer and Secretary 1.

Exhibit A AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF WIRELESS FACILITIES, INC. I. The name of this corporation is Wireless Facilities, Inc. II. The address of the registered office of the corporation in the State of Delaware is 9 East Loockerman Street, City of Dover, County of Kent, and the name of the registered agent of the corporation in the State of Delaware at such address is National Registered Agents, Inc. III. The purpose of this corporation is to engage in any lawful act or activity for which a corporation may be organized under the General Corporation Law of the State of Delaware. IV. A. This corporation is authorized to issue two classes of stock to be designated, respectively, "Common Stock" and "Preferred Stock." The total number of shares which the corporation is authorized to issue is two hundred million (200,000,000) shares. One hundred ninety five million (195,000,000) shares shall be Common Stock, each having a par value of one tenth of one cent ($0.001). Five million (5,000,000) shares shall be Preferred Stock, each having a par value of one tenth of one cent ($0.001). B. The Preferred Stock may be issued from time to time in one or more series. The Board of Directors is hereby authorized, by filing a certificate (a "Preferred Stock Designation") pursuant to the Delaware General Corporation Law, to fix or alter from time to time the designation, powers, preferences and rights of the shares of each such series and the qualifications, limitations or restrictions of any wholly unissued series of Preferred Stock, and to establish from time to time the number of shares constituting any such series or any of them; and to increase or decrease the number of shares of any series subsequent to the issuance of shares of that series, but not below the number of shares of such series then outstanding. In case the number of shares of any series shall be decreased in accordance with the foregoing sentence, the shares constituting such decrease shall resume the status that they had prior to the adoption of the resolution originally fixing the number of shares of such series. 1.

V. For the management of the business and for the conduct of the affairs of the corporation, and in further definition, limitation and regulation of the powers of the corporation, of its directors and of its stockholders or any class thereof, as the case may be, it is further provided that: A. 1. The management of the business and the conduct of the affairs of the corporation shall be vested in its Board of Directors. The number of directors which shall constitute the whole Board of Directors shall be fixed exclusively by one or more resolutions adopted by the Board of Directors. 2. Board of Directors a. Directors shall be elected at each annual meeting of stockholders to hold office until the next annual meeting. Each director shall hold office either until the expiration of the term for which elected or appointed and until a successor has been elected and qualified, or until such director's death, resignation or removal. No decrease in the number of directors constituting the Board of Directors shall shorten the term of any incumbent director. b. No person entitled to vote at an election for directors may cumulate votes to which such person is entitled, unless, at the time of such election, the corporation (i) is subject to Section 2115(b) of the California General Corporation Law ("CGCL") and (ii) is not a "listed" corporation or ceases to be a "listed" corporation under Section 301.5 of the CGCL. During this time, every stockholder entitled to vote at an election for directors may cumulate such stockholder's votes and give one candidate a number of votes equal to the number of directors to be elected multiplied by the number of votes to which such stockholder's shares are otherwise entitled, or distribute the stockholder's votes on the same principle among as many candidates as such stockholder thinks fit. No stockholder, however, shall be entitled to so cumulate such stockholder's votes unless (i) the names of such candidate or candidates have been placed in nomination prior to the voting and (ii) the stockholder has given notice at the meeting, prior to the voting, of such stockholder's intention to cumulate such stockholder's votes. If any stockholder has given proper notice to cumulate votes, all stockholders may cumulate their votes for any candidates who have been properly placed in nomination. Under cumulative voting, the candidates receiving the highest number of votes, up to the number of directors to be elected, are elected. 3. Removal of Directors a. During such time or times that the corporation is subject to Section 2115(b) of the CGCL, the Board of Directors or any individual director may be removed from office at any time without cause by the affirmative vote of the holders of at least a majority of the outstanding shares entitled to vote on such removal; provided, however, that unless the entire Board is removed, no individual director may be removed when the votes cast against such director's removal, or not consenting in writing to such removal, would be sufficient to elect that director if voted cumulatively at an election which the same total number of votes were cast (or, if such action is taken by written consent, all shares entitled to vote were voted) and the entire 2.

number of directors authorized at the time of such director's most recent election were then being elected. b. At any time or times that the corporation is not subject to Section 2115(b) of the CGCL and subject to any limitations imposed by law, Section A(3)(a) above shall not apply and the Board of Directors or any director may be removed from office at any time with or without cause by the affirmative vote of the holders of a majority of the voting power of all then-outstanding shares of voting stock of the corporation, entitled to vote at an election of directors. 4. Vacancies c. Subject to the rights of the holders of any series of Preferred Stock, any vacancies on the Board of Directors resulting from death, resignation, disqualification, removal or other causes and any newly created directorshipsresulting from any increase in the number of directors, shall, unless the Board of Directors determines by resolution that any such vacancies or newly created directorships shall be filled by the stockholders, except as otherwise provided by law, be filled only by the affirmative vote of a majority of the directors then in office, even though less than a quorum of the Board of Directors, and not by the stockholders (except as stockholders may have such rights as described below). Any director elected in accordance with the preceding sentence shall hold office for the remainder of the full term of the director for which the vacancy was created or occurred and until such director's successor shall have been elected and qualified. d. If at the time of filling any vacancy or any newly created directorship, the directors then in office shall constitute less than a majority of the whole board (as constituted immediately prior to any such increase), the Delaware Court of Chancery may, upon application of any stockholder or stockholders holding at least ten percent (10%) of the total number of the shares at the time outstanding having the right to vote for such directors, summarily order an election to be held to fill any such vacancies or newly created directorships, or to replace the directors chosen by the directors then in offices as aforesaid, which election shall be governed by Section 211 of the DGCL. e. At any time or times that the Corporation is subject to Section 2115(b) of the CGCL, if, after the filling of any vacancy by the directors then in office, where the number of such directors voting to fill, such vacancy who have been elected by stockholders shall constitute less than a majority of the directors then in office, then (i) Any holder or holders of an aggregate of five percent (5%) or more of the total number of shares at the time outstanding having the right to vote for those directors may call a special meeting of stockholders; or (ii) The Superior Court of the proper county shall, upon application of such stockholder or stockholders, summarily order a special meeting of stockholders, to be held to elect the entire board, all in accordance with Section 305(c) of the CGCL. The term of office of any director shall terminate upon that election of a successor. 3.

B. 1. Subject to paragraph (h) of Section 43 of the Bylaws, the Bylaws may be altered or amended or new Bylaws adopted by the affirmative vote of at least sixty-six and two-thirds percent (66-2/3%) of the voting power of all of the then-outstanding shares of the voting stock of the Corporation entitled to vote. The Board of Directors shall also have the power to adopt, amend, or repeal Bylaws. 2. The directors of the Corporation need not be elected by written ballot unless the Bylaws so provide. 3. No action shall be taken by the stockholders of the Corporation except at an annual or special meeting of stockholders called in accordance with the Bylaws. No action shall be taken by the stockholders by written consent. 4. Advance notice of stockholder nominations for the election of directors and of business to be brought by stockholders before any meeting of the stockholders of the Corporation shall be given in the manner provided in the Bylaws of the Corporation. VI. A. The liability of the directors for monetary damages shall be eliminated to the fullest extent under applicable law. B. This corporation is authorized to provide indemnification of agents (as defined in Section 317 of the CGCL) for breach of duty to the corporation and its shareholders through bylaw provisions or through agreements with the agents, or through shareholder resolutions, or otherwise, in excess of the indemnification otherwise permitted by Section 317 of the CGCL, subject, at any time or times the corporation is subject to Section 2115(b) to the limits on such excess indemnification set forth in Section 204 of the CGCL. C. Any repeal or modification of this Article VI shall be prospective and shall not affect the rights under this Article VI in effect at the time of the alleged occurrence of any act or omission to act giving rise to liability or indemnification. VII. A. The corporation reserves the right to amend, alter, change or repeal any provision contained in this Certificate of Incorporation, in the manner now or hereafter prescribed by statute, except as provided in paragraph B of this Article VII, and all rights conferred upon the stockholders herein are granted subject to this reservation. B. Notwithstanding any other provisions of this Certificate of Incorporation or any provision of law which might otherwise permit a lesser vote or no vote, but in addition to any affirmative vote of the holders of any particular class or series of the voting stock required by law, this Certificate of Incorporation or any Preferred Stock Designation, the affirmative vote of the holders of at least sixty-six and two-thirds percent (66-2/3%) of the voting power of all of the then-outstanding shares of the voting stock, voting together as a single class, shall be required to alter, amend or repeal Articles V, VI, and VII. 4.

EXHIBIT 4.2 CERTIFICATE OF DESIGNATIONS, PREFERENCES AND RIGHTS of SERIES A PREFERRED STOCK of WIRELESS FACILITIES, INC. I, Masood K. Tayebi, Chief Executive Officer of WIRELESS FACILITIES, INC., a corporation organized and existing under the laws of the State of Delaware (the "Corporation"), in accordance with the provisions of Section 151 of the Delaware General Corporation Law, DO HEREBY CERTIFY: That pursuant to the authority conferred upon the Board of Directors of the Corporation (the "Board of Directors") by the Certificate of Incorporation of the Corporation and by Section 151(g) of the Delaware General Corporation Law, on October 9, 2001, the Board of Directors adopted the following resolution, creating a series of shares of convertible preferred stock, Series A, designated as "Series A Preferred Stock": "RESOLVED, that pursuant to the authority vested in the Board of Directors (the "Board of Directors") of WIRELESS FACILITIES, INC., a corporation organized and existing under the laws of the State of Delaware (the "Corporation"), by the Certificate of Incorporation of the Corporation (the "Certificate of Incorporation"), the Board of Directors does hereby provide for the authorization and issuance of a series of convertible preferred stock, Series A, par value U.S.$0.001 per share, of the Corporation, to be designated "Series A Preferred Stock," initially consisting of 63,637 shares, and to the extent that the designations, powers, preferences, and relative participating, optional, or other special rights, and the qualifications, limitations, and restrictions of the Series A Preferred Stock are not stated and expressed in the Certificate of Incorporation, the Board of Directors does hereby fix and herein state and express such designations, powers, preferences, and relative participating, optional, or other special rights, and the qualifications, limitations, and restrictions thereof, as follows: 1. Designation and Rank. (a) Sixty-three thousand six hundred thirty-seven (63,637) shares of the preferred stock of the Corporation, par value $0.001 per share, shall be designated and known as the "Series A Preferred Stock." (b) The Series A Preferred Stock shall rank senior and prior to the common stock, par value U.S.$0.001 per share, of the Corporation (the "Common Stock"), and all other classes or series of the capital stock (other than preferred stock) of the Corporation (now or hereafter authorized or issued), with respect to the payment of any dividends, the conversion rights set forth herein and any payment upon liquidation or redemption. The Corporation may not issue any additional classes or series of preferred stock with liquidation, redemption or conversion rights or right of payment of any kind that is senior to the Series A Preferred Stock, except pursuant to Section 12. 1.

2. Dividend Rights. From and after the date hereof, when and if the Board of Directors declares a dividend or distribution payable with respect to the then-outstanding shares of Common Stock (other than in additional shares of Common Stock or Common Stock Equivalents (as defined in Section 4(e)(i) below), the holders of the Series A Preferred Stock shall be entitled to the amount of dividends per share in the same form as such Common Stock dividends that would be payable on the largest number of whole shares of Common Stock into which a holder's aggregate shares of Series A Preferred Stock could then be converted pursuant to Section 4 hereof (such number to be determined as of the record date for the determination of holders of Common Stock entitled to receive such dividend). 3. Liquidation Rights. (a) Liquidation Events. The occurrence of any of the following events shall be deemed a "Liquidation": (i) any liquidation, dissolution, or winding-up of the affairs of the Corporation; (ii) any transaction or series of related transactions in which securities of the Corporation representing 50% or more of the combined voting power of the Corporation's then outstanding voting securities are acquired by a person, entity or group of related persons or entities, excluding any consolidation or merger effected exclusively to change the domicile of the Corporation; (iii) any consolidation, merger or reorganization of the Corporation with or into any other corporation or other entity or person pursuant to which the holders of the Corporation's outstanding securities receive, pursuant to such transaction, securities in the surviving entity that represent less than 50% of the voting power of such surviving entity; or (iv) any sale, lease, exclusive license or other disposition of all or substantially all of the assets of the Corporation. (b) Liquidation Preference. (i) In the event of any Liquidation, whether voluntary or involuntary, before any payment of cash or distribution of other property shall be made to the holders of Common Stock, or any other class or series of stock subordinate in liquidation preference to the Series A Preferred Stock, the holders of the Series A Preferred Stock shall be entitled to receive out of the assets of the Corporation legally available for distribution to its stockholders, on behalf of each share of Series A Preferred Stock held by such holder, U.S.$550.00 (the "Original Issue Price") (as appropriately adjusted for any combinations, divisions, or similar recapitalizations affecting the Series A Preferred Stock after issuance) and all accumulated or accrued and unpaid dividends thereon (collectively, the "Series A Liquidation Preference"). (ii) If, upon any Liquidation, the assets of the Corporation available for distribution to its stockholders are insufficient to pay the holders of the Series A Preferred Stock the full amounts to which they are entitled pursuant to clause (b)(i) above, the holders of the Series A Preferred Stock shall share pro rata in any distribution of assets in proportion to the respective amounts which would be payable to the holders of the Series A Preferred Stock and any other class or series of capital stock of the Corporation ranking on par with the Series A Preferred Stock in respect of the shares held by them if all amounts payable to them in respect of such were paid in full pursuant to clause (b)(i) above. 2.

(iii) After the distributions described in clause (b)(i) or (b)(ii) above have been paid, subject to the rights of any other class or series of capital stock of the Corporation that may from time to time come into existence, the remaining assets of the Corporation available for distribution to stockholders shall be distributed among the holders of Common Stock pro rata based on the number of shares of Common Stock held by each. (c) Non-Cash Distributions. If any distribution to be made pursuant to this Section 3 is to be paid other than in cash or Common Stock or Common Stock Equivalents, the value of such distribution will be deemed its fair market value as determined in good faith by the Board of Directors. Any securities shall be valued as follows: (i) Securities not subject to investment letter or other similar restrictions on free marketability covered by clause (ii) below: (1) if traded on a securities exchange or through the Nasdaq National Market, the value shall be deemed to be the average of the closing prices of the securities on such quotation system over the thirty (30) trading day period ending three (3) trading days prior to the occurrence of the Liquidation; (2) if actively traded over-the-counter, the value shall be deemed to be the average of the closing bid or sale prices (whichever is applicable) over the thirty (30) trading day period ending three (3) trading days prior to the occurrence of the Liquidation; and (3) if there is no active public market, the value shall be the fair market value thereof, as determined by the Board of Directors. (ii) The method of valuation of securities subject to investment letter or other restrictions on free marketability (other than restrictions arising solely by virtue of a stockholder's status as an affiliate or former affiliate) shall be to effectuate an appropriate discount from the market value, as determined by clause (i)(1), (2) or (3) of this Section 3(c), so as to reflect the approximate fair market value thereof, as determined by the Board of Directors. (iii) The holders of at least a majority of the outstanding Series A Preferred Stock shall have the right to challenge any determination by the Board of Directors of fair market value pursuant to this Section 3(c), in which case the determination of fair market value shall be made by an independent appraiser selected jointly by the Board of Directors and the challenging parties, the cost of such appraisal to be borne equally by the Corporation and the challenging parties. 4. Conversion Rights. The holders of the Series A Preferred Stock shall have conversion rights as follows (the "Conversion Right"): (a) Conversion Price. The "Conversion Price" shall, initially, be U.S. $5.50 per share and shall be subject to adjustment as set forth below in Sections 4(e) and 4(f). 3.

(b) Automatic Conversion. If the closing price for the shares of the Corporation's Common Stock (trading on a securities exchange or through Nasdaq National Market or other national exchange or market) exceeds $11.00 per share (as adjusted for events described in Section 4(e)(ii) and 4(e)(iii) below) for any thirty consecutive trading day period that begins after July 29, 2004, then, upon such occurrence, each share of Series A Preferred Stock shall be automatically converted into such number of fully paid and non-assessable shares of Common Stock as is determined by dividing (x) the Original Issue Price of such share of Series A Preferred Stock (including any accumulated or accrued but unpaid dividends thereon) by (y) the Conversion Price. The date of such conversion is herein referred to as the "Conversion Date." (c) Optional Conversion. The holders of the Series A Preferred Stock shall have the right, at any time, to convert the shares of Series A Preferred Stock held by such holder into that number of shares of Common Stock into which such shares are convertible pursuant to Section 4(b) ("Optional Conversion"). In the event of any Optional Conversion, the date of the such conversion shall be referred to as the "Optional Conversion Date." (d) Mechanics of Conversion. On the Conversion Date or Optional Conversion Date, as the case may be, (x) each holder shall tender such holder's shares of Series A Preferred Stock to the Corporation for cancellation, free and clear of encumbrances of any type or nature, and (y) the Corporation shall cause to be delivered to such holder a number of shares of Common Stock as calculated pursuant to Section 4(b) above, free and clear of encumbrances of any type or nature. Each holder and the Corporation shall take all other necessary or appropriate actions in connection with or to effect such closing. (e) Certain Adjustments. To the extent that the holders of Series A Preferred Stock do not participate fully with other stockholders of the Corporation with respect to dividends paid pursuant to Section 2 hereof, the following adjustments shall be made to the Conversion Price: (i) Adjustment for Common Stock Dividends and Distributions. If, at any time after the original issue date of the Series A Preferred Stock (the "Original Issue Date"), the Corporation makes, or fixes a record date for the determination of holders of Common Stock entitled to receive, a dividend or other distribution payable in additional shares of Common Stock or Common Stock Equivalents, in each such event the Conversion Price that is then in effect shall be decreased as of the time of such issuance or, in the event such record date is fixed, as of the close of business on such record date, by multiplying the Conversion Price then in effect by a fraction (i) the numerator of which is the total number of shares of Common Stock and Common Stock Equivalents issued and outstanding immediately prior to the time of such issuance or the close of business on such record date, and (ii) the denominator of which is the total number of shares of Common Stock and Common Stock Equivalents issued and outstanding immediately prior to the time of such issuance or the close of business on such record date plus the number of shares of Common Stock or Common Stock Equivalents issuable in payment of such dividend or distribution; provided, however, that if such record date is fixed and such dividend is not fully paid or if such distribution is not fully made on the date fixed therefor, the Conversion Price shall be recomputed accordingly as of the close of business on such record date and thereafter the Conversion Price shall be adjusted pursuant to this Section 4(e)(i) to reflect the actual payment of such dividend or distribution. 4.

A "Common Stock Equivalent" shall mean each share of Common Stock into which securities or property or rights are convertible, exchangeable or exercisable for or into shares of Common Stock, or otherwise entitle the holder thereof to receive directly or indirectly, any of the foregoing. (ii) Adjustments for Stock Splits, Stock Subdivisions and Combinations. If, at any time after the Original Issue Date, the Corporation subdivides or combines the Common Stock without making a corresponding subdivision or combination of the Series A Preferred Stock, (A) in the case of a subdivision (including a stock split), the Conversion Price in effect immediately prior to such event shall be proportionately decreased and the number of shares of Common Stock purchasable thereunder shall be proportionately increased, and (B) in the case of a combination (including a reverse stock split), the Conversion Price in effect immediately prior to such event shall be proportionately increased and the number of shares of Common Stock purchasable thereunder shall be proportionately decreased. Any adjustment under this Section 4(e)(ii) shall become effective at the close of business on the date the subdivision or combination becomes effective. (iii) Adjustments for Reclassification, Reorganization and Consolidation. In case of (A) any reclassification, reorganization, change or conversion of securities of the class issuable upon conversion of the Series A Preferred Stock (other than a change in par value, or from par value to no par value) into other shares or securities of the Corporation, or (B) any merger or consolidation of the Corporation with or into another entity (other than a Liquidation or a merger or consolidation with another entity in which the Corporation is the acquiring and the surviving entity and that does not result in any reclassification or change of outstanding securities issuable upon conversion of the Series A Preferred Stock) each holder of shares of Series A Preferred Stock shall have the right to receive, in lieu of the shares of Common Stock otherwise issuable upon the conversion of its shares of Series A Preferred Stock (and accumulated or accrued and unpaid dividends then-outstanding thereunder) in accordance with Section 4(b), the kind and amount of shares of stock and other securities, money and property receivable upon such reclassification, reorganization, change, merger or consolidation upon conversion by a holder of the maximum number of shares of Common Stock into which such shares of Series A Preferred Stock could have been converted immediately prior to such reclassification, reorganization, change, merger or consolidation, all subject to further adjustment as provided herein or with respect to such other securities or property by the terms thereof. The provisions of this clause (iii) shall similarly attach to successive reclassifications, reorganizations, changes, mergers and consolidations. (f) Antidilution Adjustments. To the extent that (i) the Corporation issues after the Original Issue Date and before April 29, 2003, Additional Shares of Common Stock (as defined below) (in one or more transactions, whether or not related), (ii) each such issuance is at an Effective Price (as defined below) per share less than Conversion Price then in effect and (iii) the aggregate gross proceeds of such issuances exceed $15 million, then the Conversion Price shall be adjusted to equal the lowest Effective Price received by the Corporation pursuant to any such issuance. The previous sentence will apply to any issuances of Additional Shares of Common Stock after the $15 million threshold has been met (provided any such issuance is below the Conversion Price then in effect) but will not apply to any issuance of Additional Shares of 5.

Common Stock occurring after April 29, 2003. Notwithstanding the foregoing, the Conversion Price shall in no event be lower than U.S.$3.77. (i) For the purpose of making any adjustment required under Section 4(f), the consideration received by the Company for any issue or sale of securities shall (A) to the extent it consists of cash, be computed at the net amount of cash received by the Company after deduction of any underwriting or similar commissions, compensation or concessions paid or allowed by the Company in connection with such issue or sale but without deduction of any expenses payable by the Company (except for purposes of determining if the $15 million threshold referred to above has been met, in which case the consideration received will be deemed to be the aggregate gross proceeds received by the Company), (B) to the extent it consists of property other than cash, be computed at the fair value of that property as determined in good faith by the Board of Directors, and (C) if Additional Shares of Common Stock, Convertible Securities (as defined below) or rights or options to purchase either Additional Shares of Common Stock or Convertible Securities are issued or sold together with other stock or securities or other assets of the Company for a consideration which covers both, be computed as the portion of the consideration so received that may be reasonably determined in good faith by the Board of Directors to be allocable to such Additional Shares of Common Stock, Convertible Securities or rights or options; provided, however, that the holders of at least a majority of the outstanding Series A Preferred Stock shall have the right to challenge any determination by the Board of Directors of fair market value pursuant to this Section 4(f)(i), in which case the determination of fair market value shall be made by an independent appraiser selected jointly by the Board of Directors and the challenging parties, the cost of such appraisal to be borne equally by the Corporation and the challenging parties. (ii) For the purpose of the adjustment required under this Section 4(f), if the Company issues or sells (A) stock or other securities convertible into, Additional Shares of Common Stock (such convertible stock or securities being herein referred to as "Convertible Securities") or (B) rights or options for the purchase of Additional Shares of Common Stock or Convertible Securities and if the Effective Price of such Additional Shares of Common Stock is less than the Conversion Price, in each case the Company shall be deemed to have issued at the time of the issuance of such rights or options or Convertible Securities the maximum number of Additional Shares of Common Stock issuable upon exercise or conversion thereof and to have received as consideration for the issuance of such shares an amount equal to the total amount of the consideration, if any, received by the Company for the issuance of such rights or options or Convertible Securities, plus, in the case of such rights or options, the minimum amounts of consideration, if any, payable to the Company upon the exercise of such rights or options, plus, in the case of Convertible Securities, the minimum amounts of consideration, if any, payable to the Company (other than by cancellation of liabilities or obligations evidenced by such Convertible Securities) upon the conversion thereof; provided that if in the case of Convertible Securities the minimum amounts of such consideration cannot be ascertained, but are a function of antidilution or similar protective clauses, the Company shall be deemed to have received the minimum amounts of consideration without reference to such clauses; provided further that if the minimum amount of consideration payable to the Company upon the exercise or conversion of rights, options or Convertible Securities is reduced over time or on the occurrence or non-occurrence of specified events other than by reason of antidilution adjustments, the Effective Price shall be recalculated using the figure to which such minimum amount of consideration is 6.

reduced; provided further that if the minimum amount of consideration payable to the Company upon the exercise or conversion of such rights, options or Convertible Securities is subsequently increased, the Effective Price shall be again recalculated using the increased minimum amount of consideration payable to the Company upon the exercise or conversion of such rights, options or Convertible Securities. No further adjustment of the Conversion Price, as adjusted upon the issuance of such rights, options or Convertible Securities, shall be made as a result of the actual issuance of Additional Shares of Common Stock on the exercise of any such rights or options or the conversion of any such Convertible Securities. If any such rights or options or the conversion privilege represented by any such Convertible Securities shall expire without having been exercised, the Conversion Price, as adjusted upon the issuance of such rights, options or Convertible Securities, shall be readjusted to the Conversion Price which would have been in effect had an adjustment been made on the basis that the only Additional Shares of Common Stock so issued were the Additional Shares of Common Stock, if any, actually issued or sold on the exercise of such rights or options or rights of conversion of such Convertible Securities, and such Additional Shares of Common Stock, if any, were issued or sold for the consideration actually received by the Company upon such exercise, plus the consideration, if any, actually received by the Company for the granting of all such rights or options, whether or not exercised, plus the consideration received for issuing or selling the Convertible Securities actually converted, plus the consideration, if any, actually received by the Company (other than by cancellation of liabilities or obligations evidenced by such Convertible Securities) on the conversion of such Convertible Securities. "Additional Shares of Common Stock" shall mean all shares of Common Stock issued by the Company or deemed to be issued pursuant to this Section 4(f), whether or not subsequently reacquired or retired by the Company other than (A) shares of Common Stock and/or options, warrants or other Common Stock purchase rights, and the Common Stock issued or issuable pursuant to such options, warrants or other rights to employees, officers or directors of, or consultants or advisors to the Company or any subsidiary pursuant to stock purchase or stock option plans or other arrangements that are approved by the Board; (B) shares of Common Stock issued or issuable pursuant to any equipment loan or leasing arrangement, or debt financing from a bank or similar financial institution; (C) shares of Common Stock issued or issuable in connection with licensing transactions involving the Company and other entities, including (1) joint ventures, manufacturing, marketing or distribution arrangements or (2) technology transfer or development arrangements; provided that such transactions in (1) and (2) and the issuance of shares therein has been approved by a majority of the members of the Company's Board of Directors and the aggregate number of shares so issued does not exceed four million (4,000,000)(as adjusted for stock splits, stock dividends, stock combinations, recapitalizatons and the like); and (D) any other issuances approved by the holders of a majority of the Series A Preferred Stock then outstanding. The "Effective Price" of Additional Shares of Common Stock shall mean the quotient determined by dividing the total number of Additional Shares of Common Stock issued or sold, or deemed to have been issued or sold by the Company under this Section 4(f), into the aggregate consideration received, or deemed to have been received by the Company for such issue under this Section 4(f), for such Additional Shares of Common Stock. 7.

5. Other Distributions. In the event the Corporation provides the holders of its Common Stock with consideration that is not otherwise addressed in Section 4 (including, without limitation, declaring a distribution payable in securities, assets, cash or evidences of indebtedness issued by other persons or the Corporation (excluding cash dividends declared and paid by the Corporation out of retained earnings)), then, in each such case, the holders of the Series A Preferred Stock shall be entitled to a pro rata share of any such distribution as though such holders were holders of the number of shares of Common Stock of the Corporation as though the Series A Preferred Stock had been converted in whole as of the record date fixed for the determination of the holders of Common Stock of the Corporation entitled to receive such distribution. 6. Recapitalizations. If at any time there occurs a recapitalization of the Common Stock (other than a subdivision, combination, or merger or sale of assets provided for in Section 4 hereof), the holders of the Series A Preferred Stock shall be entitled to receive upon conversion of the Series A Preferred Stock the number of shares of capital stock or other securities or property of the Corporation or otherwise to which a holder of the Common Stock deliverable upon conversion would have been entitled on such recapitalization. In any such case, appropriate adjustment shall be made in the application of the provisions of Section 4 hereof with respect to the rights of the holders of the Series A Preferred Stock after the recapitalization to the end that the provisions of Section 4 hereof (including adjustment of the Conversion Price then in effect and the number of shares purchasable upon conversion of the Series A Preferred Stock) shall be applicable after that event as nearly equivalent as may be practicable. 7. No Impairment. The Corporation will not, by amendment of the Certificate of Incorporation or through any reorganization, recapitalization, transfer of assets, consolidation, merger, dissolution, issuance or sale of securities or any other voluntary action, avoid or seek to avoid the observance or performance of any of the terms to be observed or performed hereunder by the Corporation, but will at all times in good faith assist in the carrying out of all the provisions hereof and in the taking of all such action as may be necessary or appropriate in order to protect the Conversion Right of the holders of the Series A Preferred Stock against impairment. 8. No Fractional Shares and Certificate as to Adjustments. (a) No fractional shares of Common Stock will be issued upon the conversion of any share or shares of the Series A Preferred Stock. All shares of Common Stock (including fractions thereof) issuable upon conversion of more than one share of Series A Preferred Stock by a holder shall be aggregated for purposes of determining whether the conversion would result in the issuance of any fractional share. If, after the aforementioned aggregation, the conversion would result in the issuance of a fraction of a share of Common Stock, the Corporation shall, in lieu of issuing any fractional share, pay the holder otherwise entitled to such fraction a sum in cash equal to such fraction multiplied by the closing price of the Corporation's Common Stock on the Nasdaq National Market (or any other national securities exchange on which the Common 8.

Stock is then traded) on the day immediately preceding the conversion. All calculations under Section 4 hereof and this Section 8(a) shall be made to the nearest cent or to the nearest share, as the case may be. (b) Upon the occurrence of each adjustment or readjustment of the Conversion Price pursuant to Section 4 hereof, the Corporation, at its expense, shall promptly compute such adjustment or readjustment in accordance with the terms hereof and prepare and furnish to each holder of shares of Series A Preferred Stock a certificate setting forth such adjustment or readjustment and showing in detail the facts upon which such adjustment or readjustment is based. The Corporation shall, upon the written request at any time of any holder of Series A Preferred Stock, use its reasonable best efforts to furnish or cause to be furnished to such holder a like certificate setting forth (i) such adjustment or readjustment, (ii) the Conversion Price at the time in effect, and (iii) the number of shares of Common Stock and the amount, if any, of other property which at the time would be received upon the conversion of a share of Series A Preferred Stock. 9. Reservation of Stock Issuable Upon Conversion. The Corporation shall at all times reserve and keep available out of its authorized but unissued shares of Common Stock, solely for the purpose of effecting the conversion of the shares of the Series A Preferred Stock, such number of its shares of Common Stock that shall from time to time be sufficient to effect the conversion of all outstanding shares of the Series A Preferred Stock; and if at any time the number of authorized but unissued shares of Common Stock not otherwise reserved for issuance shall not be sufficient to effect the conversion of all then outstanding shares of the Series A Preferred Stock, the Corporation shall take such corporate action that may, in the opinion of its counsel, be necessary to increase its authorized but unissued shares of Common Stock to such number of shares as shall be sufficient for such purposes, including, without limitation, engaging in best efforts to obtain the requisite stockholder approval of any necessary amendment to its Certificate of Incorporation. 10. Notices. Any notice required by the provisions hereof to be given to the holders of shares of Series A Preferred Stock shall be given in writing and shall be deemed to have been given (i) in the case of personal or hand delivery, on the date of such delivery, (ii) in the case of an internationally-recognized overnight delivery courier, on the second business day after the date when sent, (iii) in the case of mailing, on the fifth business day following that day on which the piece of mail containing such communication is posted and (iv) in the case of facsimile transmission, the date of telephone confirmation of receipt. 11. Voting Rights. Holders of Series A Preferred Stock shall be entitled to vote on all matters submitted to a vote of the holders of the Corporation's Common Stock, including with respect to the election of directors of the Corporation, on an as if converted to Common Stock basis; provided, however, that the number of votes to which the Series A Preferred Stock is entitled shall be based on a conversion price of $5.50 per share, giving effect to any future adjustments pursuant to Section 9.

4(e) above, but without giving any effect to any future adjustments pursuant to Section 4(f) above. 12. Protective Provisions. Subject to the rights of any series of preferred stock that may from time to time come into existence, so long as any shares of Series A Preferred Stock are outstanding, the Corporation shall not without first obtaining the approval (by vote or written consent, as provided by law) of the holders of at least a majority of the then-outstanding shares of Series A Preferred Stock, voting separately as a series: (a) amend its Certificate of Incorporation (including the filing of a Certificate of Designations) so as to (i) increase the number of authorized shares of the Corporation's preferred stock or (ii) affect adversely the shares of Series A Preferred Stock or any holder thereof, including, without limitation, by creating any additional series of preferred stock (or issuing shares under any such series) that is senior or pari passu in liquidation preference, redemption right, conversion rights or right of payment to the Series A Preferred Stock; (b) after the date of this Certificate of Designation, create any new debt instrument or create or increase any new or existing bank line (or similar arrangement pursuant to which the Company is or becomes indebted), so that the Company's total indebtedness pursuant to such instruments, lines or arrangements exceeds $105,000,000 in the aggregate; or (c) change the rights of the holders of the Series A Preferred Stock in any other respect; provided, however, that the authorization and issuance of additional shares of Common Stock, and creation of any series of preferred stock (or issuing shares under any such series) that is junior in right of payment upon liquidation, redemption, conversion and payment rights and otherwise to the Series A Preferred Stock shall not be deemed to adversely affect the rights, preferences or privileges of the Series A Preferred Stock or any holder thereof or change the rights of the holders of the Series A Preferred Stock in any other respect. The Series A Preferred Stock shall have no preemptive rights pursuant hereto. 13. Legend. The Series A Preferred Stock and any underlying shares of Common Stock will be issued under an exemption or exemptions from registration under the Act. Accordingly, the certificates evidencing the Series A Preferred Stock and the underlying Common Stock shall, upon issuance, contain a legend, substantially in the form as follows: "THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE U.S. SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), OR APPLICABLE STATE SECURITIES LAWS AND NO INTEREST HEREIN MAY BE SOLD, TRANSFERRED OR OTHERWISE DISPOSED OF UNLESS (1) A REGISTRATION STATEMENT WITH RESPECT TO SUCH SECURITIES SHALL BE EFFECTIVE UNDER 10.

THE ACT AND ANY APPLICABLE STATE SECURITIES LAWS OR (2) SUCH SECURITIES ARE TRANSFERRED PURSUANT TO RULE 144 PROMULGATED UNDER THE ACT (OR ANY SUCCESSOR RULE) OR (3) THE ISSUER OF THESE SECURITIES SHALL HAVE RECEIVED AN OPINION OF COUNSEL FOR THE HOLDER OF THESE SECURITIES REASONABLY SATISFACTORY TO THE ISSUER THAT NO VIOLATION OF THE ACT OR SIMILAR STATE SECURITIES LAWS WILL BE INVOLVED IN SUCH TRANSFER. 14. Status of Converted Stock. In the event any shares of Series A Preferred Stock shall be converted pursuant to Section 4 hereof, the shares so converted shall be canceled and shall not be reissuable by the Corporation. [Signature page follows] 11.

IN WITNESS WHEREOF, said Wireless Facilities, Inc. has caused this Certificate of Designations to be signed by Masood K. Tayebi, its Chief Executive Officer, as of October 29, 2001. WIRELESS FACILITIES, INC. By: /s/ Masood K. Tayebi ---------------------------------- Name: Masood K. Tayebi Title: Chief Executive Officer 12.