SUNNYVALE, CA, August 18, 2010 – Applied Signal Technology, Inc. (NASDAQ: APSG) will host a conference call to discuss its financial results for the third quarter of its fiscal year 2010 on Tuesday August 31, 2010 at 5:00PM Eastern Time. The Company’s prepared remarks will be followed by a question and answer session.

Via telephone, the dial-in number is 877-407-8031 for domestic callers or 201-689-8031 for international callers; no password is required. The conference call will also be Web cast live (listen-only mode) at the following Web sites: http://www.appsig.com and http://www.InvestorCalendar.com.

The press release announcing the Company’s results will be distributed over a national wire service prior to the conference call. The press release will also be posted at the Company’s Web site: http://www.appsig.com.

Replay of the teleconference call will be available until October 1, 2010 / 11:59PM Pacific Time via telephone by calling 877-660-6853 (International 201-612-7415). Replay pass codes are required: account number 286 and conference ID number 355754.

Replay of the webcast will be available until October 29, 2010 at: http://www.InvestorCalendar.com.

Applied Signal Technology, Inc. is a leading provider of advanced intelligence, surveillance and reconnaissance (ISR) products, systems, and services that enhance global security. For further information about Applied Signal Technology, visit our website at www.appsig.com.