In the noise 1.7 can make a signal copiable. It may not make much of a
difference in a given pileup. And a lot of people cannot discern even
a 3 db difference, HOWEVER...
Over the course of a contest, any number of marginal circumstances
will occur where the 1.7 will push you over the edge into copiability,
especially when you are talking about an antenna and the difference is
on RX as well.
1.7 db will add Q's in a contest.
----- Original Message -----
From: "Al Williams" <alwilliams@olywa.net>
To: <Towertalk@contesting.com>
Sent: Monday, March 18, 2002 6:09 PM
Subject: [Towertalk] 1.7 db gain
> The TenTec reflector is having a discussion on the merits of 1.7 db
gain.
> Altho
> the issue is about power out of the new Orion rig, Tower talkers may
be
> more knowledgeable and there is a related antenna situation.
>
> The argument is that 1.7 db is just noticeable to most human ears,
however
> Force12 literature suggests that even that small a difference may
cause
> the AGC in the received signal to favor the louder station. Is the
effect
> then
> greater than just the difference that a 1.7db would appear to be?
>
> Note that 1.7 db is in the ball park of the difference between a two
element
> yagi
> and a 3 element yagi. A two element is much easier to install &
maintain.
> Also 1.7 db is in the ball park of the difference in some of the
yagis shown
> in
> k7lxc's antenna test report.
>
> From experience, I know that 1.7 db doesn't amount to much with
clear
> channel, S5 or greater signals but how effective is it for weak
signals?
>
> k7puc
>
>
>
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