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Applied Signal Technology, Inc. to Host a Conference Call on May 24, 2005 to Discuss Second Quarter Operating Results

SUNNYVALE, Calif.--May 16, 2005--Applied Signal Technology, Inc. announced today that it will host a conference call on Tuesday, May 24, 2005 at 9:00AM Eastern (6:00AM Pacific) to discuss second quarter operating results. Gary L. Yancey, President and CEO will be hosting the call. The second quarter operating results will be released through the newswire services on Tuesday, May 24, 2005 at 8:00AM Eastern (5:00AM Pacific).

Investors will have the opportunity to listen to this event in two ways -- via teleconference or webcast:

Via telephone, the dial-in number is 877-407-8035 for domestic callers or 201-689-8035 for international callers. There is no pass code required. There will be a question/answer session at the end of the conference call. A 24-hour digital replay of the teleconference call will be available by dialing 877-660-6853 for domestic callers and 201-612-7415 for international callers. Replay access number is required for the playback by entering account number 286 and conference ID number 151039. The teleconference call replay will be available beginning at 4:00PM Pacific Time on May 24, 2005 and ending at 11:59PM PDT on May 2, 20055, 2005.

Applied Signal Technology, Inc. will hold a live web cast at 9:00AM Eastern (6:00AM Pacific) to allow securities analysts and shareholders the opportunity to hear management discuss the company's quarterly results. The call is being web cast by Vcall and can be accessed at Applied Signal Technology, Inc.'s website at www.appsig.com. Investors can also access the web cast at www.vcall.com. The web cast will be available for replay through August 22, 2005.

Applied Signal Technology designs, develops, manufactures and markets advanced digital signal processing equipment to collect and process a wide range of telecommunications signals for signal reconnaissance applications. For additional Company-related information, visit the Company's web site at www.appsig.com.