Enhanced AN/TPQ-36 Counterfire Target Acquisition Radar (EQ-36)

The Enhanced AN/TPQ-36 (EQ-36) Counterfire Target Acquisition radar currently being developed by Lockheed Martin for the U.S. Army will detect, classify, track and determine the location of enemy indirect fire such as mortars, artillery and rockets in either 90-degree or 360-degree modes. These systems will replace aging TPQ-36 and TPQ-37 medium-range radars, currently in the Army’s inventory.

Seventeen new EQ-36 systems will be delivered to the Army's Program Executive Office – Intelligence, Electronic Warfare and Sensors – under a design and development contract awarded to Lockheed Martin in January 2007. The first of the EQ-36 systems is on schedule for delivery to the Army by summer 2009; the last systems will be delivered by fall 2010.

In October 2007, the EQ-36 program completed a successful Preliminary Design Review and in March 2008, the program successfully completed its Critical Design Review (CDR).

In November and December 2007, a prototype EQ-36 radar, built by industry partner Syracuse Research under an Army Technology Objective, was tested in full 360-degree counter-fire mode against mortars and rockets at the U.S. Army’s Yuma Proving Grounds in Arizona. During the tests, which were specifically designed to evaluate the radar’s ability to meet U.S. Army requirements, the EQ-36 prototype successfully located the firing positions of both rocket and mortar launchers in 360-degree mode. Live fire testing was conducted over a seven-day period without a single false alarm.

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