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Whistle Beacon

An acoustic emergency transmitter for model aircraft

Whistle Beacon

Model aircraft sometimes have the unpleasant property of choosing their own landing field, and doing so in terrain where they are hard to see. In such cases, the model finder described here can make the search easier.
An unplanned landing is already bad enough, but to make matters worse, it sometimes happens in a cornfield. That often means searching criss-cross through the field for several hours and considerable damage to the field, which neither the farmer nor the insurance company finds especially pleasant. This whistle beacon circuit will at least help you find your model more quickly, by emitting a loud signal if the transmitter is switched off or the joystick is moved past a previously programmed position. The searchers (and unfortunately, the farmer as well) can hardly help hearing this signal.

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