1997-01-15 - Re: Newt’s phone calls

Header Data

From: Eric Blossom <eb@comsec.com>
To: michael.tighe@Central.Sun.COM
Message Hash: 164766b47876065063752a9c980813d78c84fe9fbf393db6d27bee446af2d69b
Message ID: <199701150204.SAA25917@comsec.com>
Reply To: <199701142058.OAA05219@jeep.Central.Sun.COM>
UTC Datetime: 1997-01-15 02:27:33 UTC
Raw Date: Tue, 14 Jan 1997 18:27:33 -0800 (PST)

Raw message

From: Eric Blossom <eb@comsec.com>
Date: Tue, 14 Jan 1997 18:27:33 -0800 (PST)
To: michael.tighe@Central.Sun.COM
Subject: Re: Newt's phone calls
In-Reply-To: <199701142058.OAA05219@jeep.Central.Sun.COM>
Message-ID: <199701150204.SAA25917@comsec.com>
MIME-Version: 1.0
Content-Type: text/plain



> 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





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