AN/TPS-75

AN/TPS-75
Steve Grzezdzinski · Public domain · source
Name	AN/TPS-75
Caption	AN/TPS-75 radar system
Country	United States
Introduced	1970s
Manufacturer	Raytheon
Type	Transportable three-dimensional radar

AN/TPS-75 The AN/TPS-75 is a transportable tactical radar system developed for long-range surveillance and air traffic control roles. Initially fielded by the United States Air Force during the late 20th century, it supported operations alongside platforms such as the E-3 Sentry, F-15 Eagle, and F-16 Fighting Falcon. The system integrated into command networks including NORAD, USCENTCOM, and NATO's Allied Command Operations for theater-level airspace management.

Development and design

Development began within programs managed by the United States Department of Defense and contractors including Raytheon Technologies and predecessor firms associated with Hughes Aircraft Company. Engineers drew on lessons from projects like the AN/FPS-117 and concepts proven in the Vietnam War and Cold War air defense modernization. Design emphasized mobility compatible with transport assets such as the C-130 Hercules and M978 tanker truck, permitting rapid tactical redeployment to support exercises like Operation Desert Storm and deployments in support of Operation Enduring Freedom. The radar combined a rotating antenna, solid-state components, and modular shelters influenced by standards from Joint Chiefs of Staff directives and interoperability requirements of the North Atlantic Treaty Organization.

Technical specifications

The AN/TPS-75 used a rotating planar array providing two-dimensional surveillance with adaptations for height-finding in coordinated networks. Key subsystems reflected technologies also used in the AN/FPS-117, AN/TPS-59, and export systems supplied to partners such as United Kingdom, Japan Self-Defense Forces, and Royal Australian Air Force. Frequency bands and peak power were consistent with NATO frequency management practices and constrained by regulations of the International Telecommunication Union. Mobility features matched transportability guidelines used by United States Army and USAF tactical units; power generation and environmental control integrated diesel generators produced by firms similar to Caterpillar Inc.. Maintenance concepts leveraged test equipment and documentation standards aligned with MIL-STD-810 and MIL-STD-461.

Operational history

The AN/TPS-75 supported air sovereignty and campaign operations from the Persian Gulf War through missions over Iraq and Afghanistan, and in exercises such as Red Flag and Blue Flag. Deployed to theater command centers and combined air operations centers tied to lines of communication overseen by USCENTCOM and USEUCOM, it augmented surveillance provided by platforms like AWACS and MQ-9 Reaper. Units from the Air National Guard and active-duty wings employed the system in homeland defense alongside NORAD and integrated it with national systems managed by the Federal Aviation Administration during contingency air traffic control operations. Its service life intersected with procurements and doctrine shifts influenced by commissions such as the Goldwater-Nichols Act and procurement oversight by the Defense Acquisition Board.

Variants and upgrades

Incremental modernization followed patterns similar to upgrades on systems like the AN/FPS-132 and AN/TPS-59. Retrofit kits improved signal processing, reliability, and electronic countermeasure resistance using components and techniques developed by contractors with ties to Northrop Grumman and Lockheed Martin. Software-defined enhancements paralleled developments in programs such as Joint Surveillance Target Attack Radar System and leveraged digital processing algorithms influenced by research at institutions like Massachusetts Institute of Technology and Georgia Institute of Technology. Add-ons enabled integration with tactical data links analogous to Link 16 and command structures used by Allied Command Transformation.

Deployment and operators

The primary operator was the United States Air Force with fielding across continental locations and forward bases in Kuwait, Saudi Arabia, Turkey, and Germany. Allied users included elements of the Royal Air Force, Japanese Air Self-Defense Force, and partner forces engaged under Coalition of the Willing constructs during Operation Iraqi Freedom. Units conducting deployments ranged from active wings to Air National Guard wings and expeditionary radar squadrons coordinated by entities such as the Air Combat Command and Pacific Air Forces.

Category:Ground radars of the United States