AN/APG-71

The AN/APG-71 is an X-band airborne radar system, manufactured by Hughes Electronics in the United States, serving as a digital upgrade to the AN/AWG-9 radar. Both systems were utilized as nose radars in the F-14 Tomcat fighter aircraft. It features a mechanically scanning monopulse array antenna, composed of slots within a waveguide system, with visible dipoles on the antenna being part of the Identification Friend or Foe (IFF) interrogator. Key operational modes include velocity search for maximum detection range against nose-aspect targets, range-while-search for all-aspect target detection, and track-while-scan, which, when paired with autonomous missiles like the AIM-120, provides fire-and-forget capability. The radar operates with a peak power of 10 kW, an average power of 500 W, pulsewidths of 0.4 and 50 µs, and has an instrumented range of 140 nautical miles (260 km).

radartutorial.eu: https://www.radartutorial.eu/19.kartei/08.airborne/karte025.en.html