Applied Signal Technology, Inc. operates in the Communications equipment sector. Applied Signal Technology, Inc. (AST) is a provider of intelligence, surveillance and reconnaissance (ISR) solutions. The Company operates in four divisions: Broadband Communication Systems, Intelligence and Electronic Warfare Systems, Network Intelligence and Sensor Systems. The Company provides domain knowledge in the areas of communications, signals intelligence (SIGINT) and sensor signature processing. The Company's SIGINT comprises the collection and exploitation of communications intelligence, electronic intelligence and cyber intelligence. AST's sensor signature activity includes processing information from electro-optic, sonar, radar, magnetic, and chemical sensors to detect changes in the environment and provide real-time alerts of potential threats. AST is engaged in the collection, processing and understanding of signals for ISR missions with low size, weight and power configurations to enable deployment on unmanned platforms. In April 2010, the Company acquired Seismic LLC.