An EM emitter includes at least three orthogonal coils driven by an oscillating voltage source, with the coils being electrically in parallel or series. When used in a vehicle, particularly an airplane, and the vehicle is lost, e.g., sinks, the emitter's EM signal passes through water with little attenuation and can be detected and the vehicle located.
DOWNED AIRCRAFT LOCATION SYSTEM AND METHOD
2018-03-22
Patent
Electronic Resource
English
British Library Conference Proceedings | 2008
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