I re-read Mark's post on this subject and did some more SSB experiments,
this time with my speech processor turned off. I did indeed now see an
erratic SWR on my pegasus. I believe Mark's analysis is in fact right on
the mark (no pun intended). I am going to make a change to my high SWR
power reduction feature. Instead of just looking at solely at SWR to decide
to reduce power, I will only look at reflected power. When the value of
reflected power exceeds the value required to reach the threshold SWR for
100 watts forward power, I will reduce the power. This will prevent low
power instances of SWR calculation from tripping my SWR power reduction
feature.
73,
Carl Moreschi N4PY
Franklinton, NC
----- Original Message -----
From: "Carl Moreschi" <n4py@earthlink.net>
To: <tentec@contesting.com>
Sent: Saturday, February 14, 2004 3:58 AM
Subject: Re: [TenTec] Pegasus Erratic SWR readings
> The idea of the power reduction feature is to reduce power BEFORE the
finals
> blow. Adding a delay here defeats the purpose of the feature. I don't
see
> the erratic SWR with my pegasus.
>
> 73,
>
> Carl Moreschi N4PY
> Franklinton, NC
> ----- Original Message -----
> From: "Guy Zebrick" <gwzmcz@earthlink.net>
> To: <tentec@contesting.com>
> Sent: Saturday, February 14, 2004 3:08 AM
> Subject: [TenTec] Pegasus Erratic SWR readings
>
>
> Interesting - I also am seeing intermittent high SWR. This has caused my
> latest version of Carl's software to automatically drop to the lower power
> levels. I thought that I had trouble with my coax or antenna, but I can
find
> no problems.
>
> Perhaps Carl might want to add a small delay in the SWR power reduction
> program?
>
> 73's
> WD5ACP
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