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When hit by the radar, such lengths of metal resonate and re-radiate the signal. [9] Opposing defences would find it almost impossible to distinguish the aircraft from the echoes caused by the chaff. Other radar-confusing techniques included airborne jamming devices codenamed Mandrel, Piperack, Jostle and Carpet.
Mechanical jamming is caused by devices that reflect or re-reflect radar energy back to the radar to produce false target returns on the operator's scope. Mechanical jamming devices include chaff, corner reflectors, and decoys.
When jamming is strong enough, the radar receiver can detect it from a relatively low gain sidelobe. The radar, however, will process signals as if they were received in the main lobe. Therefore, jamming can be seen in directions other than where the jammer is located. To combat this, an omnidirectional antenna is used for a comparison signal ...
The jammer's continuous transmissions will provide a clear direction to the enemy radar, but no range information. [1] Deception may use a transponder to mimic the radar echo with a delay to indicate incorrect range. [1] Transponders may alternatively increase return echo strength to make a small decoy appear to be a larger target. [1]
This is a list of World War II electronic warfare equipment and code words and tactics derived directly from the use of electronic equipment.. This list includes many examples of radar, radar jammers, and radar detectors, often used by night fighters; also beam-guidance systems and radio beacons.
Days later, the Air National Guard claimed a C-130 traveling back from a training exercise had released a massive cluster of chaff – or radar-jamming material – from its innards, briefly ...
Chaff may be deployed over a large area of space, creating a large, radar-reflecting object that will obscure incoming warheads from defensive radar. Radar jammers are active radio transmitters that can be deployed on the decoys and the warhead to jam the frequencies used by defensive radars or literally blind them from seeing any warheads around.
An alleged signal-jamming device recovered by Vanderburgh County Sheriff's deputies in June. While testifying, Robinson said he had never particularly thought about the impact a signal jammer ...