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On 23 May 2006, two Greek F-16s intercepted a Turkish RF-4 reconnaissance aircraft and two F-16 escorts off the coast of the Greek island of Karpathos, within the Athens FIR. A mock dogfight ensued between the two sides, resulting in a midair collision [162] between a Turkish F-16 and a Greek F-16. The Turkish pilot ejected safely, but the ...
Pulsed radiofrequency is the technique whereby radio frequency (RF) oscillations are gated at a rate of pulses (cycles) per second (one cycle per second is known as a hertz (Hz)). Radio frequency energies occupy 1.0 × 10 4 Hz to 3.0 × 10 11 Hz of the electromagnetic spectrum.
A DRFM system is designed to digitize an incoming RF input signal at a frequency and bandwidth necessary to adequately represent the signal, then reconstruct that RF signal when required. The most significant aspect of DRFM is that as a digital "duplicate" of the received signal, it is coherent with the source of the received signal.
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In March 1954 the unit moved back to Japan and in August 1956, moved to Okinawa. The unit transitioned to Republic RF-84F Thunderflashes from 1956-1958 and then to McDonnell RF-101 Voodoos, continuing its long history of photographic reconnaissance. During the Vietnam era the 15th Squadron was based at Kadena Air Base, Okinawa, flying the RF ...
In today's edition: The best rookies in sports history, from "Big Three" to "Big Two," dispatch from Paris, "The Diff," photo finish, and more.
Radio fingerprinting is a process that identifies a cellular phone or any other radio transmitter by the fingerprint that characterizes its signal transmission and is hard to imitate.