Applied Signal Technology, Inc. Presenting at the
Thomas Weisel Partners 2008 Technology Telecom Internet Conference

Sunnyvale, CA February 4, 2008 – Applied Signal Technology, Inc. (NASDAQ – APSG) will be presenting at the Thomas Weisel Partners Technology Internet Conference in San Francisco, CA

This event is being audio web cast live on Tuesday February 5, 2008, at 5:05PM Eastern (2:05PM Pacific) and can be accessed at the Applied Signal Technology, Inc. web site at www.appsig.com or http://www.veracast.com/webcasts/twp/tech08/39210468.cfm

The audio web cast will be archived for 30 days after the conference ends.

Applied Signal Technology, Inc. provides advanced digital signal processing products, systems, and services in support of intelligence, surveillance, and reconnaissance for global security. For further information about Applied Signal Technology’s products and services, visit our web site at www.appsig.com.