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PARABOLIC LISTNING DEVICE

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rana naseem javed

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HI

I REALLY NEED A CIRCUIT WITH PCB AND COSTRUCTION OF PARABOLIC LISTNING DEVICE.

CAN ANY BODY HELP ME
 

What frequency ? 10Hz, 10KHz, 10MHz, 10GHz ??

A parabolic dish is just that, a parabola. You put the 'listening' device, microphone or antenna at its focal point. The rest is just an amplifier.

Brian.
 

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