What he is most likely listening to is the first 30 seconds of the
transmission before the system switches over to the full digital encrypted
mode. That is analog and then the encryption and digital takes over. The
other thing could be that they piggyback up to 5 separate radio
transmissions on 1 signal. The one you want to listen to maybe unencrypted
but 1 of the other 4 maybe encrypted and your radio can't separate them. In
my location we have what they call the state of the art system and they
claim that no other place in the world even comes close. Our police,
ambulance and fire have been on it for a few years now and yet while
searching the 870 MHz and up for cell-phones to listen to I found that I was
getting the first 30 seconds of the fire calls and then bang it would switch
to digital encryption. One last point is that the different services using
the system can change the encryption keys at will and they do this every 4
hours or so.

"Mediaguy500" wrote in message
...
And also IIRC, you would be
breaking the law being able to eavesdrop an encrypted conversation
anyway.

And also IIRC, you would be
breaking the law being able to eavesdrop an encrypted conversation
anyway.

I don't think he wants to listen to encrypted conversations. If you
reread his
original message, he said that the encrypted communications are also
preventing
the unencrypted communications from being heard on his scanner.