Re: Newt's phone calls

[Eric Blossom <eb@comsec.com>]

> Exactly. So how come mom&pop with a scanner were able to record BOTH sides
> of the conversation without interruption? This seems pretty suspicious to
> me. 

You typically only need to tune into either the forward or reverse
channel.  You can usually hear both sides (one may be down a few dB).
This is probably a result of acoustic coupling from the speaker into
the microphone on one or both ends (could also be near-end hybrid
echo).  You see the same situation on both cellular and the 49 MHz
cordless phones.

Eric