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Also derived the azimuth signal and displayed the results on the ANF 2 display giving the pilot a left/right command. Operating frequency 24 - 28 MHz. 8 Watts transmit power. The unit also interfaced to the FuG 10 system in the aircraft so that voice communication with the pilot from the ground controllers via the Fug 28a was possible.
United States Army Air Forces aircraft carried the SCR-578 on over-water operations. Nicknamed the Gibson Girl because of its hourglass shape, it was supplied with a fold-up metal frame box kite, and a balloon with a small hydrogen generator, for which the flying line was the aerial wire. Power was provided by a hand cranked generator.
Responding on a different frequency has several practical advantages, most notably that the response from one IFF cannot trigger another IFF on another aircraft. But it requires a complete transmitter for the responder side of the circuitry, in contrast to the greatly simplified regenerative system used in the British designs.
When ground-based radar equipment [9] receives the IDENT bit, it results in the aircraft's blip "blossoming" on the radar scope. This is often used by the controller to locate the aircraft amongst others by requesting the ident function from the pilot, e.g., "Cessna 123AB, squawk 0363 and ident". [6] [7]
The frequency range is 30 MHz to 390 MHz. AM and FM modes enabling compatibility with airborne units in the 118 MHz - 149.975 MHz and 225 MHz - 390 MHz aircraft radio bands. Unusually for a military radio, it can also work in duplex modes. Power settings are 2 watts on low power and 7 watts on high. It has interfaces for GPS.
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.
The AirFly Pro can also work the other way: You can plug it into, say, an older home stereo or car stereo and then use your phone to stream tunes.
The BAC-111 cockpit includes a stick shaker/pusher following its 1963 crash. A stick shaker is a mechanical device designed to rapidly and noisily vibrate the control yoke (the "stick") of an aircraft, warning the flight crew that an imminent aerodynamic stall has been detected.