Ultrasonic detector

Ultrasonic ddetector circuit required. Wideband to cover all resonance frequencies of ear bones (up to 4 MHz). Dual channel to detect carrier source. Demodulate carriers to allow recording. Alarm on detection of carriers (selectable frequencies).

This stuff should not be in the air. It never used to be but now it is and has to be uncovered.

Reply to
noauth
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Wow, four MHz ears. That's something!

Carriers of what, swine flu?

Silly posts from annonymous remailers?

Probably a MI-5 plot, have you checked with Q?

Reply to
PeterD

** Nice send-up reply !

.... regards, Phil

Reply to
Phil Allison

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