(Mark One)

[X] Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

or

[   ] Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 for the Transition Period from ____________________to ____________________.

Commission file number 0-21236

Indicate by a check 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 periods that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practical date.

Common Stock, no par value, 10,054,744 shares outstanding as of August 28, 2002.

This Quarterly Report on Form 10-Q consists of 30 pages.

Note: The balance sheet at October 31, 2001 has been derived from the audited financial statement at that date but does not include all of the information required by accounting principles generally accepted in the United States for complete financial statements.

Historically, the Company’s investment securities, which consist primarily of U.S. Treasury Securities, are classified as available-for-sale and are carried at fair market value. Unrealized gains and losses, net of tax, are reported as a separate component of shareholders’ equity. Realized gains and losses on available-for-sale securities are included in interest income (expense), net. The cost of securities sold is based on the specific identification method. Interest on securities classified as available-for-sale, is included in interest income (expense), net. During the first nine months of fiscal year 2002, the Company did not purchase or own any available-for-sale securities or U.S. treasuries.

The majority of the Company’s contracts are accounted for using the guidance of the American Institute of Certified Public Accountants Statement of Opinion 81-1 Accounting for Performance of Construction-Type and Production-Type Contracts. Applied Signal Technology accounts for fixed price contracts using the percentage-of-completion method of accounting. Under this method, contract costs are charged to operations as incurred. A portion of the contract revenue, based on estimated profits and the degree of completion of the contract as measured by a comparison of the actual and estimated costs, is recognized as revenue each period. The Company accounts for cost reimbursement contracts by charging contract costs to operations as incurred and recognizing contract revenues and profits by applying an estimated fee rate to actual costs on an individual contract basis. Management reviews contract performance, costs incurred and estimated completion costs regularly and adjusts revenues and profits on contracts in the period in which changes become determinable. Anticipated losses on contracts are also recorded in the period in which they become determinable. At interim periods during the fiscal year, contract costs are stated at target indirect rates, and the variances between actual and target spending is inventoried (for further information see "Note 2 — Inventory").

Basic per share data is based on the weighted effect of all common shares issued and outstanding, and is calculated by dividing net income (loss) available to common shareholders by the weighted average shares outstanding during the period. Diluted per share data is calculated by dividing net income available to common shareholders by the weighted average number of common shares used in the basic earnings per share calculation, plus the number of common shares that would be issued assuming conversion of all potentially dilutive securities outstanding using the treasury stock method. When a net loss occurs, diluted per share data is the same as basic.

A reconciliation of shares used in the calculation of basic and diluted per share data follows (in thousands, except per share data):

Approximately 63,000 and 93,000 stock options were excluded from the number of shares used to compute diluted net loss per common share for the three and nine months ended August 3, 2001, respectively, as their effect would be antidilutive.

On May 17, 2001, the Company’s Board of Directors voted to suspend dividend payments made to shareholders. The Company paid no dividends during the first nine months of fiscal year 2002, and $585,000 and $1,733,000 during the third quarter and first nine months of fiscal year 2001, respectively.

The components of comprehensive income activity, net of tax are as follows (in thousands):

As of August 2, 2002 and October 31, 2001, accumulated unrealized gain (loss) on securities was zero.

The components of inventory consist of the following (in thousands):

The Company records contract revenues and costs for interim reporting purposes based on annual targeted indirect rates. At year-end, the revenues and costs are adjusted for actual indirect rates. During the interim reporting periods, variances may accumulate between the actual indirect rates and the annual targeted rates. All timing-related indirect spending variances are inventoried as part of work in process during these interim reporting periods. These rates are reviewed regularly, and the Company records reserves for any permanent variances in the statement of operations in the period they become known. At August 2, 2002 the unfavorable inventoried variance was approximately $2,583,000. At August 3, 2001, the favorable inventoried variance was approximately $867,000. This amount was the result of an actual unfavorable variance of approximately $5,133,000 that was reduced by a management reserve of $6,000,000. The 2001 management reserve reflected the Company’s belief that contract activities through the end of the year would be lower than previous estimates and would not fully absorb the rate variance. At October 31, 2001 and October 31, 2000, the variance was zero since all revenues and costs were recorded at the actual indirect rates for each fiscal year end. Management believes the rate variance at August 2, 2002 will be absorbed by expected contract activities during the remainder of fiscal year 2002.

Precontract costs represent costs incurred in connection with ongoing contracts for which contract modifications have not been definitized and costs incurred in anticipation of specific expected future contract awards.

In August 2001, the Financial Accounting Standards Board (FASB) issued Statement of Financial Accounting Standards (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 and supersedes SFAS No. 121, Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets to be Disposed Of, and the accounting and reporting provisions of APB Opinion No. 30, Reporting the Results of Operations, for a disposal of a segment of a business. SFAS 144 is effective for fiscal years beginning after December 15, 2001, with earlier application encouraged. The Company will adopt SFAS 144 as of November 1, 2002, and is in the process of evaluating what, if any, impact the adoption will have on its results of operations and financial condition.

In July 2002, the FASB approved SFAS No. 146, Accounting for Costs Associated with Exit or Disposal Activities. SFAS 146 addresses the financial accounting and reporting for obligations associated with an exit activity, including restructuring, or with a disposal of long-lived assets. Exit activities include, but are not limited to, eliminating or reducing product lines, terminating employees and contracts and relocating plant facilities or personnel. SFAS 146 specifies that a company will record a liability for a cost associated with an exit or disposal activity only when that liability is incurred and can be measured at fair value. Therefore, commitment to an exit plan or a plan of disposal expresses only management’s intended future actions and, therefore, does not meet the requirement for recognizing a liability and the related expense. SFAS 146 is effective prospectively for exit or disposal activities initiated after December 31, 2002, with earlier adoption encouraged. The Company does not anticipate that the adoption of SFAS 146 will have a material effect on its financial position or results of operations.

The financial information relating to Applied Signal Technology is reviewed and evaluated by the chief operating decision-maker as a whole, and not its individual divisions. During the second quarter of fiscal year 2001, eNetSecure was reintegrated into Applied Signal Technology, which left one additional reporting segment, Transcendent Technologies. Transcendent Technologies was reintegrated during the fourth quarter of fiscal year 2001. The remaining business activities from these former separate segments are minimal, and divisional financial information for Applied Signal Technology is not available or reviewed by the chief operating decision-maker below the gross margin level. Thus, there is only one reportable segment during the first nine months of fiscal year 2002.

Financial data by segment for the nine-month period ended August 3, 2001 was as follows (in thousands):

The provision for income taxes for the first nine months of fiscal year 2002 is comprised of an estimated annual tax rate of 3% and a reduction to income taxes of approximately $823,000, which includes a reclassification during the third quarter of approximately $97,000 to interest expense and deferred tax assets. The Company’s projected annual effective tax rate for fiscal year 2002 is calculated based on the projected income for the year and reflects the benefit of potential deferred tax assets for which a valuation allowance had been recorded at the end of fiscal year 2001. The reduction to income taxes was the result of a tax law change during the second quarter of fiscal year 2002, which allowed the Company to recover a larger tax refund than previously calculated at the end of fiscal year 2001. The Company’s estimated annual effective tax rate for the nine months ended August 3, 2001 was a benefit rate of 28%.

The following information should be read in conjunction with the attached financial statements and notes thereto.

Forward-looking statements in this report are made pursuant to the safe harbor provisions of Section 21E of the Securities Exchange Act of 1934. In this report, the words "anticipates," "believes," "expects," "future," "intends," and similar expressions identify forward-looking statements. Shareholders are cautioned that all forward-looking statements pertaining to the Company involve risks and uncertainties, including, without limitation, those contained under the caption, "Summary of Business Considerations and Certain Factors that May Affect Future Results of Operations and/or Stock Price," and other risks detailed from time to time in the Company’s periodic reports and other information filed with the Securities and Exchange Commission. Actual events and results may differ materially from the Company’s current expectations and beliefs.

Applied Signal Technology, Inc. ("Applied Signal Technology" or "the Company") provides advanced digital signal processing products, systems, and services used in reconnaissance of foreign telecommunications signals. The Company’s primary customers are the United States Government and its foreign allies. The Company develops and manufactures equipment for both the collection and processing of signals. Its signal collection equipment consists of sophisticated receivers that scan through potentially thousands of cellular telephone, microwave, ship-to-shore, and military transmissions in the radio frequency (RF) spectrum with the goal of collecting certain specific signals. The Company’s signal processing equipment uses advanced software and hardware to evaluate characteristics of the collected signals and selects those most likely to contain relevant information. At its inception in 1984, the Company focused its efforts primarily on processing equipment. Over time, the Company has broadened its scope to add specialized collection equipment and complete signal processing systems.

In recent years, accurate and comprehensive information regarding foreign affairs and developments has become increasingly important to the United States Government. The reduction of United States military tactical forces overseas, coupled with political instability in certain regions such as the Middle East, Eastern Europe, Africa, and Central and South America, has heightened the United States Government’s need to be able to monitor overseas activities. In order to obtain information about activities within foreign countries, the United States Government gathers and analyzes telecommunication signals emanating from those countries.

Additionally, the use of established telecommunication technologies has increased throughout the world, and new telecommunication technologies, supplementing rather than replacing prior technologies, have been developed and commercialized. These trends have led to a significant increase in the overall volume of information communicated and an increase in the density of signals transmitted throughout the RF spectrum. This increase can be seen in the proliferation of facsimile, cellular, and digital signal telecommunications equipment and in the global information network (for example, the Internet) in the last decade, resulting in a significant increase in the amount of information being communicated. These trends have required the development of signal intelligence equipment capable of collecting and processing an increased volume of signals as well as new types of signals.

The Company’s signal intelligence products can be used, with or without further modification, to satisfy requirements of a variety of customers. The Company believes its products can be readily deployed in a wide variety of circumstances to meet current United States Government signal intelligence requirements.

As a result of the tragic events of September 11, 2001, the United States Government announced that it would provide increased funding for counter-terrorism. Counter-terrorism is focused on individuals and groups of individuals, and relies heavily on human intelligence (HUMINT) gathering. Signal intelligence (SIGINT) is a key component of HUMINT. Applied Signal Technology believes it is a pre-eminent resource for SIGINT capabilities providing products, systems, and services that offer state-of-the-art SIGINT.

Applied Signal Technology’s objective is to anticipate the needs of the signal intelligence marketplace and to invest in research and development in an effort to provide solutions before the Company’s competitors. In some cases, this involves the development of equipment or services to address new telecommunications technologies. In other cases, it involves the development of equipment that offers smaller size, lower power consumption, and lower cost than potentially competitive products. The Company’s strategy to accomplish its objectives includes the following elements.

Anticipate marketplace needs. The Company devotes significant resources in order to understand future telecommunications processing needs. The Company monitors technological and commercial advances in telecommunications to identify advances it believes will create new opportunities. The Company obtains information about marketplace needs through its frequent contact with technical and contracting officials of pertinent intelligence community government agencies.

Many times, sole-source contracts are granted by the United States Government when a single contractor is deemed to have expertise or technology that is superior to that of competing contractors. Since the Company’s inception, a significant portion of its revenues has been from sole-source contracts. The Company believes that the large number of sole-source contracts it obtains demonstrates that it often correctly anticipates marketplace needs. There can be no assurance, however, that the Company will correctly anticipate the marketplace needs in the future.

Invest in research and development. The Company invests in research and development it believes will enable it to develop equipment and services that will satisfy the signal intelligence needs of the future. The Company believes that it invests a greater percentage of its revenues in R&D than is typical among its competitors. The Company believes its R&D investments often enable it to offer superior products before its competitors.

Develop flexible products. The Company develops products that can be used, with or without further modification, to satisfy the needs of a variety of customers. The Company uses its prior product development efforts to offer customers cost-effective solutions and to offer these solutions promptly. The Company believes that custom equipment developed by many of its competitors generally cannot be as readily deployed in as wide a variety of circumstances as Applied Signal Technology’s products.

Develop highly integrated products. The Company designs its products to use advanced circuitry and highly integrated components. This enables the Company to offer products that are smaller, consume less power, and cost customers less when multiple units are built than equipment of similar functionality that uses fewer advanced designs and materials. The lower cost of many of the Company’s products appeals to customers with budget constraints, and the smaller size and low power consumption of many of the Company’s products appeal to customers with physical installation constraints.

Focus on signal processing. Since inception, the Company has focused much of its attention on developing signal processing equipment and services. The Company believes that there have been and will continue to be opportunities to develop specialized signal processing equipment and services to satisfy emerging technological requirements.

Increase penetration and broaden customer base. The Company believes that its current customers offer opportunities for sales growth, both in terms of additional units of developed products, the development of new products, and the provision of services, and, accordingly, directs much of its marketing efforts toward these customers in order to increase the Company’s penetration of these markets. The Company continues to try to broaden its customer base by increasing marketing efforts toward military signal intelligence and evaluating local law enforcement opportunities.

Revenue and cost recognition. The majority of the Company’s contracts are accounted for using the guidance of the American Institute of Certified Public Accountants Statement of Opinion 81-1 Accounting for Performance of Construction-Type and Production-Type Contracts. Applied Signal Technology accounts for fixed-price contracts using the percentage-of-completion method of accounting. Under this method, contract costs are charged to operations as incurred. A portion of the contract revenue, based on estimated profits and the degree of completion of the contract as measured by a comparison of the actual and estimated costs, is recognized as revenue each period. The Company accounts for cost-reimbursement contracts by charging contract costs to operations as incurred and recognizing contract revenues and profits by applying an estimated fee rate to actual costs on an individual contract basis. Management reviews contract performance, costs incurred and estimated completion costs regularly and adjusts revenues and profits on contracts in the period in which changes become determinable. Anticipated losses on cost-reimbursement and fixed-priced contracts are also recorded in the period in which they become determinable. Unexpected increases in the cost to develop or manufacture a product, whether due to inaccurate estimates in the bidding process, unanticipated increases in material costs, inefficiencies, or other factors, are borne by the Company, for fixed-priced contracts, and could have a material adverse effect on the Company’s results of operations and financial condition. Unexpected cost increases in cost-reimbursement contracts may be borne by the Company, for goodwill purposes. Historically, the effect on the Company’s operating results and financial condition from cost-reimbursement losses has been minimal.

Indirect rate variance. The Company records contract revenues and costs for interim reporting purposes based on annual targeted indirect rates. At year-end, the revenues and costs are adjusted for actual indirect rates. During the interim reporting periods, variances may accumulate between the actual indirect rates and the annual targeted rates. All timing-related indirect spending variances are inventoried as part of work in process during these interim reporting periods. These rates are reviewed regularly, and the Company records reserves for any permanent variances in the statement of operations in the period they become known. At August 2, 2002 the unfavorable inventoried variance was approximately $2,583,000. At August 3, 2001, the favorable inventoried variance was approximately $867,000. This amount was the result of an actual unfavorable variance of approximately $5,133,000 that was reduced by a management reserve of $6,000,000. The 2001 management reserve reflected the Company’s belief that contract activities through the end of the year would be lower than previous estimates and would not fully absorb the rate variance. Management believes the rate variance at August 2, 2002 will be absorbed by expected contract activities during the remainder of fiscal year 2002.

The Company’s accounting policy, which records the rate variance in inventories, is based on management’s belief that such a variance will be absorbed by expected contract activities during the remainder of the year. If contract activities do not reach planned levels, the Company has alternatives it can utilize to absorb the variance. The Company can adjust downward some of its planned indirect spending during the year; it can increase its billing rates to its customers; or it can record charges to expense based on reduced estimates of future contract activities.

By the end of fiscal year 2001, the Company reintegrated its two wholly owned subsidiaries, eNetSecure and Transcendent Technologies, and restructured Applied Signal Technology in order to better align infrastructure costs with anticipated revenues. The Company believes that the restructuring activities resulted in a cost structure that will permit it to be profitable during fiscal year 2002.

New orders levels for the third quarter of fiscal year 2002 were approximately $24,419,000 up 156% from approximately $9,522,000 in the third quarter of fiscal year 2001. Order levels for the first nine months of fiscal year 2002 were approximately $54,800,000, up 8% compared to approximately $50,953,000, reported for the same period in fiscal year 2001. The increase in orders for the third quarter and the first nine months of fiscal year 2002 when compared to the same periods of fiscal year 2001 is primarily due to what the Company believes to be a renewed interest in signal intelligence spending by the U.S. Government.

As a result of the tragic events of September 11, 2001, the United States Government announced that it would provide increased funding for counter-terrorism. Counter-terrorism is focused on individuals and groups of individuals, and relies heavily on human intelligence (HUMINT) gathering. Signal intelligence (SIGINT) is a key component of HUMINT. Applied Signal Technology believes it is a pre-eminent resource for SIGINT capabilities providing products, systems, and services that offer state-of-the-art SIGINT. The Company believes it would benefit from the increased spending on counter-terrorism. However, the Company does not yet know whether such spending will occur or, if it does, the extent or timing of any such spending.

Provision for income taxes. The provision for income taxes for the first nine months of fiscal year 2002 is comprised of an estimated annual tax rate of 3% and a reduction to income taxes of approximately $823,000, which includes a reclassification during the third quarter of approximately $97,000 to interest expense and deferred tax assets. The Company’s projected annual effective tax rate for fiscal year 2002 is calculated based on the projected income for the year and reflects the benefit of potential deferred tax assets for which a valuation allowance had been recorded at the end of fiscal year 2001. The reduction to income taxes was the result of a tax law change during the second quarter of fiscal year 2002, which allowed the Company to recover a larger tax refund than previously calculated at the end of fiscal year 2001. The Company’s estimated annual effective tax rate for the nine months ended August 3, 2001 was a benefit rate of 28%.

The Company’s primary sources of liquidity during the first nine months of fiscal year 2002 were the cash flows generated from net income, refundable income taxes and the issuance of common stock through the Company’s employee stock purchase plans.

The Company has a $3,000,000 secured, revolving bank line of credit for short-term cash requirements bearing interest at the bank’s reference rate (4.75% as of August 2, 2002). At both August 2, 2002 and October 31, 2001 the Company was in compliance with all restrictions and covenants, and this facility had not been utilized. The line of credit expires on March 15, 2003.

Net cash used in investing activities. Cash used in investing activities during the first nine months of fiscal year 2002 was approximately $981,000 compared to approximately $176,000 provided by investing activities during the same period of fiscal year 2001. Historically, the Company has engaged in investing in certain available-for-sale securities, either money market accounts or U.S. treasuries. During the first nine months of fiscal year 2002, the Company did not purchase or own any available-for-sale securities or U.S. treasuries. However, during the comparable period of fiscal year 2001, the maturity of available-for-sale securities did provide cash of approximately $4,029,000. Additions to property and equipment were approximately $981,000 and $3,853,000 during the first nine months of fiscal year 2002 and 2001. During the first nine months of fiscal year 2001, the Company added a new facility, in accordance with the terms of the original lease agreement, and acquired property and equipment to support the operations of the Company’s two reintegrated subsidiaries.

Net cash provided by financing activities. Cash provided by financing activities during the first nine months of fiscal year 2002 was approximately $1,667,000 compared to cash provided by financing activities of approximately $358,000 during the same period of fiscal year 2001. The source of cash provided by financing activities in both periods was the issuance of common stock under the Company’s employee stock purchase plan, which was partially offset by dividend payments of $1,733,000 during the first nine months of fiscal year 2001. In an effort to reduce future cash expenditures, the Company’s Board of Directors voted on May 17, 2001 to suspend future dividend payments.

Cash is generated primarily from operating activities, employee stock purchase activities, and investing activities. Historically, the Company’s investing activities have been limited to money market accounts and U.S. treasuries. The Company believes the primary risk to liquidity is the potential decrease in demand for the Company’s products and services. Historically, the demand for the Company’s products and services has been influenced by the needs of the U.S. intelligence community.

The Company believes that the funds generated from operations and existing working capital will be sufficient to meet its cash needs for the next twelve months.

Applied Signal Technology’s future operating results and stock price may be subject to volatility, particularly on a quarterly basis, due to the following.

Customer concentration. Historically, defense and intelligence agencies of the United States Government have accounted for almost all of Applied Signal Technology’s revenues. Future reductions in United States Government spending on signal intelligence or future changes in the kind of signal intelligence products or services required by the United States Government agencies could limit demand for the Company’s products and services, which would have a material adverse effect on the Company’s operating results and financial condition.

Also, potential shifts in responsibilities and functions within the defense and intelligence communities could result in a reduction of spending on signal intelligence by the defense and intelligence agencies that have historically been the Company’s major customers. The Company believes that the United States Government may compensate for reductions in spending by these agencies with increases in spending for signal intelligence by other Government agencies. However, the Company’s relationships with other Government agencies are not as strong as they are with the agencies with which it has historically dealt. There is no assurance that any reduction in spending by the agencies with which the Company has historically dealt will be offset by other United States Government agencies, and even if other agencies increase spending for signal intelligence, there is no assurance that the Company will secure the same amount of work from such other agencies. As a result, demand for the Company’s products and services could decline, which would have a material adverse effect on the Company’s operating results and financial condition.

Government security and contracting regulations. As a supplier of United States Government defense and intelligence agencies, the Company must comply with numerous regulations, including regulations governing security and contracting practices. Failure to comply with these regulations could disqualify the Company as a supplier of these agencies, which would have a material adverse effect on the Company’s operating results and financial condition.

Competition. The signal intelligence market is highly competitive and Applied Signal Technology expects that competition will increase in the future. Some of the Company’s current and potential competitors have significantly greater technical, manufacturing, financial, and marketing resources than the Company. Substantial competition could have a material adverse effect on the Company’s future operating results and financial condition.

Dependence upon personnel. Applied Signal Technology’s ability to execute its business plan is contingent upon successfully attracting and retaining qualified employees. Management believes that there has been a change in the local California economy where the Company must compete for talent in the telecommunications sector. In California, it should not be as difficult to recruit new staff capable of obtaining the necessary security clearance in fiscal year 2002 as in prior years. The Company maintains offices in Annapolis Junction, Maryland; Herndon, Virginia; Hillsboro, Oregon; and Salt Lake City, Utah; providing it the ability to attract and retain qualified personnel in areas outside of California. The Company believes the offices should allow it to successfully attract and retain qualified employees. However, management believes that it is becoming increasingly difficult in the Annapolis Junction, Maryland office to attract and hire qualified candidates due to security clearance requirements and current labor market conditions. Failure to do so could have a material adverse effect on the Company’s operating results and financial condition.

Risk of fixed price, cost reimbursable, and contract terminations. A material portion of Applied Signal Technology’s revenue is derived from fixed-price contracts. Unexpected increases in the cost to develop or manufacture a product, whether due to inaccurate estimates in the bidding process, unanticipated increases in material costs, inefficiencies, or other factors, are borne by the Company, for fixed-priced contracts, and could have a material adverse effect on the Company’s results of operations and financial condition. Unexpected cost increases in cost-reimbursement contracts may be borne by the Company, for goodwill purposes. Historically, the effect to the Company’s operating results and financial condition from cost-reimbursement losses has been minimal.

The Company has experienced cost overruns in the past that have resulted in losses on certain contracts. There can be no assurance that the Company will not experience cost overruns in the future or that such overruns will not have a material adverse effect on the Company’s future results of operations and financial condition.

In addition, almost all of the Company’s contracts contain termination clauses, which permit contract termination upon the Company’s default or for the convenience of the other contracting party. In either case, termination could adversely affect the Company’s operating results. During fiscal year 2001, the Company received unanticipated contract closeout notifications on three significant engineering contracts for the convenience of the other contracting party. These closeouts contributed, in part, to the need for the Company to reduce its cost structure during fiscal year 2001. There can be no assurance that such terminations will not occur in the future.

Potential fluctuations in quarterly results and market volatility. Applied Signal Technology has experienced significant fluctuations in operating results from quarter to quarter and expects that it will continue to experience such fluctuations in the future. These fluctuations are caused by, among other factors, conditions inherent in government contracting and the Company’s business, such as the timing of cost and expense recognition for contracts, the United States Government contracting and budget cycles and contract closeouts. Fluctuations in quarterly results, shortfalls in revenues or earnings from levels forecast by securities analysts, changes in estimates by analysts, competition, or announcements of extraordinary events such as acquisitions or litigation may cause the price of the Company’s common stock to fluctuate substantially. In addition, there can be no assurance that an active trading market will be sustained for the Company’s common stock. The stock market in recent years has experienced extreme price and volume fluctuations that have particularly affected the market prices of many technology companies and that have been unrelated or disproportionately related to the operating performance of such companies. These fluctuations as well as general economic and market conditions may adversely affect the future market price of the Company’s common stock.

Rapid technological change. The market for Applied Signal Technology products is characterized by rapidly changing technology. The Company believes that it has been successful to date in identifying certain signal intelligence needs early, investing in research and development to meet these needs, and delivering products before the Company’s competitors. The Company believes that its future success will depend upon continuing to develop and introduce, in a timely manner, products capable of collecting or processing new types of telecommunications signals. There can be no assurance that the Company will be able to develop and market new products successfully in the future or respond effectively to technological changes, such as data encryption technology and others, or that new products introduced by others will not render the Company’s products or technologies noncompetitive or obsolete.

Dependence upon certain suppliers. Although Applied Signal Technology procures most of its parts and components from multiple sources or believes that these components are readily available from numerous other sources, certain components are available only from sole sources or from a limited number of sources. While the Company believes that substitute components or assemblies could be obtained, use of substitutes would require development of new suppliers or would require the Company to re-engineer its products, or both, which could delay the Company’s shipment of its products and could have a material adverse effect on the Company’s operating results and financial condition.

Business disruption. Applied Signal Technology’s corporate headquarters, including most of its research and development operations and production facilities, are located in the Silicon Valley area of Northern California, a region known for seismic activity. A significant earthquake could materially affect operating results. The Company is not insured for most losses and business interruptions of this kind.

Restructuring. The Company believes that the restructuring activities in fiscal year 2001 were sufficient to return the Company to profitability in fiscal year 2002. However, the delay in receipt of anticipated government procurements could cause a material, adverse effect on the Company’s profitability, financial condition, and operating results.

Recent legislative actions and proposed accounting changes. In order to comply with the newly adopted Sarbanes-Oxley Act of 2002, as well as proposed changes to listing standards by NASDAQ, and proposed accounting changes by the Securities and Exchange Commission, the Company may be required to increase its internal controls, hire additional personnel and additional outside legal, accounting, and advisory services, all of which will cause general and administrative costs to increase.

In addition, proposed changes in the accounting rules, including legislative and other proposals to account for employee stock options as a compensation expense among others, could materially increase the expense that the Company reports under generally accepted accounting principles. These additional expenses could have an adverse affect on the Company’s operating results and financial condition.

Insurance costs. Insurers are also likely to increase premiums as a result of the high claims rates incurred over the past year, and so premiums for the Company’s various insurance policies, including directors’ and officers’ insurance policies, are likely to increase, and could have an adverse affect on the Company’s operating results.

Interest rate risk. The Company’s interest income is sensitive to changes in the general level of U.S. interest rates, particularly since the majority of the Company’s investments are in short-term instruments. However, due to the short-term nature of these cash investments, the Company does not believe that there is a material risk exposure.

The Company, from time to time, is engaged in various legal actions including, but not limited to, wrongful termination allegations, governmental agency investigations, and employee discrimination allegations. The Company believes that these legal actions will not, either individually or in aggregate, have a material adverse affect on the operating results or financial condition of the Company.

None.

None.

None.

None.

Exhibits — See Index to Exhibits

Reports on Form 8-K — The Company did not file any reports on Form 8-K during the nine months ended August 2, 2002.

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Applied Signal Technology, Inc.

I, Gary L. Yancey, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Applied Signal Technology, Inc.;

2. Based on my knowledge, this quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this quarterly report; and

3. Based on my knowledge, the financial statements and other financial information included in this quarterly report fairly present in all material respects the financial condition, results of operations, and cash flows of the registrant as of, and for, the periods presented in this quarterly report.

********************

I, James E. Doyle, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Applied Signal Technology, Inc.;

2. Based on my knowledge, this quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this quarterly report; and

3. Based on my knowledge, the financial statements and other financial information included in this quarterly report fairly present in all material respects the financial condition, results of operations, and cash flows of the registrant as of, and for, the periods presented in this quarterly report.