AN/TPQ-53 Quick Reaction Capability Radar is a mobile active electronically scanned array counter-battery radar system manufactured by Lockheed Martin.The radar is specifically designed to locate the firing positions of both rocket and mortar launchers. The AN/TPQ-53 has a maximum detection range of 38 miles / 60 km and has an operating frequency of 2 - 4 GHz.
Per the Joint Electronics Type Designation System (JETDS), the nomenclature AN/TPQ-53 is thus derived:
The TPQ-53 radar's delivery on 2 July 2009 followed its successful live-fire performance testing against indirect fire from mortars, artillery and rockets from a simulated enemy. The system has been tested and approved by the US Army.TPQ-53 radar systems will replace the aging TPQ-36 and TPQ-37 medium-range radars now in the Army's inventory. In addition to its counter-fire and counter-drone missions,[2]
Prior to September 2011 This system was known as EQ-36 Counterfire Target Acquisition Radar.[3]
In June 2013 the United States Army exercised a contract option to finish out the total production of 51 systems.[4] After a contract award 24 April 2017 has completed production, the Army will hold more than 170 such systems.[5] In April 2020 the first GaN based AN/TPQ-53 was delivered to the U.S. Army[6]
After Russian-backed separatists started operating tanks in Eastern Ukraine, the U.S. started sending military items to Ukraine, including 20 AN/TPQ-53 radar systems in 2015. As a result, Ukraine's units thus equipped had casualty rates decline from 47 percent to around 18 percent. Ukrainian combat expertise with the system led to their providing training to U.S. forces.[7]