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Precision approach radar or PAR is a type of radar guidance system designed to provide lateral and vertical guidance to an aircraft pilot for landing, until the landing threshold is reached. [1] Controllers monitoring the PAR displays observe each aircraft 's position and issue instructions to the pilot that keep the aircraft on course and ...
A beam waveguide antenna is a type of complicated Cassegrain antenna with a long radio wave path to allow the feed electronics to be located at ground level. It is used in very large steerable radio telescopes and satellite ground antennas, where the feed electronics are too complicated and bulky, or requires too much maintenance and alterations, to locate on the dish; for example those using ...
Typical GSM sector antenna outdoor unit. A sector antenna is a type of directional microwave antenna with a sector-shaped radiation pattern.The word "sector" is used in the geometric sense; some portion of the circumference of a circle measured in degrees of arc. 60°, 90° and 120° designs are typical, often with a few degrees 'extra' to ensure overlap and mounted in multiples when wider or ...
The AN/APG-66 radar is an X-band [1] solid state medium range (up to 80 nautical miles (150 km; 92 mi)) pulse-Doppler planar array radar originally designed by the Westinghouse Electric Corporation (now Northrop Grumman) for use in early generations of the F-16 Fighting Falcon.
The AN/FRD-10 is a United States Navy circularly disposed antenna array (CDAA), built at a number of locations during the Cold War for high frequency radio direction finding and signals intelligence. In the Joint Electronics Type Designation System , FRD stands for fixed ground, radio, direction finding. 14 sites were originally constructed as ...
AN/APS-125 improved AN/APS-120 pulse-Doppler ultra high frequency surveillance radar by General Electric for E-2 Hawkeye AN/APS-126 surface search radar for the patrol version of P-3 Orion AN/APS-127 derivative of AN/APS-124 maritime surveillance radar by Texas Instruments for fix wing aircraft HU-25A/B
±10 degrees / ± 30 degrees / ± 60 degrees The AN/APG-68 radar is a long range (maximum detection range 80 kilometres [50 mi]) [ 2 ] Pulse-Doppler radar designed by Westinghouse (now Northrop Grumman ) to replace AN/APG-66 radar in the General Dynamics F-16 Fighting Falcon .
Corner reflector antennas have moderate gain of 10–15 dB, [2] high front-to-back ratio of 20–30 dB, and wide bandwidth. Corner reflector antennas are widely used for UHF television receiving antennas , point-to-point communication links and data links for wireless WANs , and amateur radio antennas on the 144, 420, and 1296 MHz bands. [ 2 ]