In the old days...guys would turn off the AGC and place a volt meter on the
audio output...then try to see the difference in voltage...seems like a lot
of work...I basically am pretty satisfied if I work who I can hear ;-)
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Bill Turner
Sent: Tuesday, May 15, 2007 2:06 PM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] 3 element or 4 element beam
ORIGINAL MESSAGE:
On Tue, 15 May 2007 13:57:18 -0400, "David Jordan"
<wa3gin@comcast.net> wrote:
>Marketing HYPE... with AGC set your expectation to >3db before you hear the
>difference.
------------ REPLY FOLLOWS ------------
If the AGC is working correctly, you should have a huge change in
signal strength before you hear the difference, far more than 3 db. An
AGC range of 40 to 60 db is not uncommon. That's why an S2 signal has
the same audio volume as one at 60 over 9.
But again, this has nothing to do with signal to noise ratio.
Bill W6WRT
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