[TowerTalk] 3 element or 4 element beam

[Al Williams]

----- Original Message ----- 
From: "Bill Turner" <dezrat at copper.net>
To: <towertalk at contesting.com>
Sent: Tuesday, May 15, 2007 10:03 AM
Subject: Re: [TowerTalk] 3 element or 4 element beam


> ORIGINAL MESSAGE:
>
> On Tue, 15 May 2007 09:50:20 -0700, "Al Williams"
> <alwilliams at olywa.net> wrote:
>
>>I am aware that a 1 db difference in audio is barely
>>noticeable.  However, as I understand, Force12 claims that a 1 db gain on
>>the desired signal can cause the automatic gain of the RF to help in
>>addition to the 1db audio difference?
>
> ------------ REPLY FOLLOWS ------------
>
> The only function of the automatic gain control (AGC) circuit in your
> receiver is to maintain the audio output at a more or less constant
> level so you don't have to ride the volume control constantly. It has
> nothing to do with improving signal to noise ratio or anything of the
> like.
>
> I don't know what Force 12 said exactly but there must have been some
> misunderstanding there somewhere.
>
> Bill W6WRT
It is on page 11 of Force12 publication "Array of Light" on antennas.
It is copyright.  If I remember correctly the Orion transceiver allows
the operator to set the amount of AGC which helps (?) for copying
weak signals.

k7puc