AN/APG-67
The AN/APG-67 is an X-band, multi-mode, all-digital coherent pulse-Doppler airborne radar. Originally designed and developed by General Electric for Northrop’s F-20 Tigershark in the late 1970s, it features a planar phased array antenna and a low peak power Traveling Wave Tube Amplifier (TWTA) transmitter. The radar operates with low pulse repetition frequency (PRF) in look-up mode, medium PRF in look-down mode, and high PRF for velocity search. Its signal processor, equipped with CMOS large-scale integrated circuits, utilizes pulse compression and digital Fast Fourier Transform processing. The AN/APG-67 offers various air-to-air, air-to-ground, sea-search, and mapping modes, with an instrumented range of 148 km (80 NM), a search range of approximately 130 km for fighter aircraft, and a tracking range of about 90 km. An optional Synthetic Aperture Radar (SAR) mode is available. The AN/APG-67(V)4 is currently produced by Lockheed Martin in Syracuse, N.Y., and the system is deployed on the Taiwan Indigenous Defense Fighter (IDF) Ching Kuo and the Republic of Korea Air Force's T/A-50 aircraft.
radartutorial.eu: https://www.radartutorial.eu/19.kartei/08.airborne/karte036.en.html