Herley Industries Incorporated, founded in 1965 and based in Lancaster, Pennsylvania, develops command-and-control, telemetry, flight instrumentation, microwave assembly, distributed data encoding, broadband radio frequency (RF) power amplification, communications, and other RF and microwave systems. The company manufactures antennas, attenuators, modulators, hybrid microcircuits, radar altimeters, high-power liquid-cooled power amplifiers, radiation hazard meters, switches, oscillators, frequency synthesizers, and Global Positioning System (GPS) products. It serves defense, aerospace, and health care organizations worldwide. Herley Industries' systems support space launch, military, and medical diagnostics operations. The company's manufacturing processes comply with ISO 9001 quality standards. Herley Industries encompasses the Defense Electronics and Commercial Technologies divisions. The company maintains nine facilities across the United States, the United Kingdom, and Israel. It is listed on NASDAQ under the HRLY symbol. In 2004, thirty-two percent of the firm's revenue came from international customers. Herley Industries employs 1,000 people, including 230 microwave engineers. The company is focusing on enhancing its manufacturing operations. It also is focusing on strategic acquisitions. Herley Industries acquired Micro-Dynamics Incorporated in 1992, Vega Precision Laboratories Incorporated in 1993, and Stewart Warner Electronics in 1995. It also has acquired Metraplex Corporation, General Microwave Corporations, Robinson Labs, American Microwave Technologies (AMT), EW Simulation Technology Limited, Communication Techniques Incorporated, Reliable System Services, Micro Systems Incorporated, and Innovative Concepts Incorporated.