If it's voice inversion, even if the base freq shifts about, should be
pretty straight forward to decode. Any .wav (or whatever format) samples
on the net available to download and examine?


B.




Ralph A. Schmid, DK5RAS wrote:
Wayne Howell wrote:


I've recently bought a PRO-95 and am enjoying scanning.....

Several times now, while listening to our local police/sheriff channel,
I'll run receive an unintelligible message. The voices are very high
pitched, sounding like a cross between Minnie Mouse and Alvin the
Chipmunk, and I know they're talking but I can't quite understand what
they are saying. Superimposed over this is a loud ticking sound.

What have I run into??


Rolling code voice inversion, the "tick" is the sync telegram. Should
be near to impossible to decode this, sorry.

Transcrypt is a common manufaturer of such toys, also AFAIK Daxon.


Wayne
Port Townsend, WA





regards - Ralph