Rick, I have both the built-in LDG tuner and a 238.
For high VSWR the separate tuner works better
since it has a separate ground.
I have not noticed a big difference in performance
between the 238 and the built-in tuner.
Maybe I have a much better grounding system than
you.
When I use a amp the 238 is needed.
73, Jim W7ANF
----- Original Message -----
From: "Rick Tyler" <rp.tyler@worldnet.att.net>
To: <TenTec@contesting.com>
Sent: Friday, November 02, 2001 17:17 PM
Subject: [TenTec] Don't Make No Sense
> Maybe someone on the list can help me figure this one out . . . I got a
> Pegaus this summer and have been having fun with it . . . been running it
> through an LDG Autotuner the whole time. Seemed to work fine, although I
> found the Autotuner too noisy and hated retuning with it when I was
skipping
> around during a contest. So I decided to sell it (already sold and
> delivered) and, figuring that one day I would run some Power (with a
capital
> P), and since I now insist on an "MFJ Free" shack (another story for
> another time) I figured I'd bite the bullet and buy the TenTec Model 238A
> Antenna Tuner. I ordered it Tuesday afternoon. On Thursday, I was just
> coming back from mailing off the LDG to its new owner, when the UPS truck
> pulled up in front of me with the new tuner. Typical TenTec service.
> Less than 48 hours from their door to mine, UPS ground!
>
> I hooked it up last night, ran through the list of frequencies and made up
a
> cheat sheet. The S-meter on my Pegasus shot up and signals were coming out
> of the woodwork. Okay, maybe the conditions are right and I just lucked
out
> hooking it up at just the right time . . . but the strange thing is that
> I've always been plagued with monitor noise at certain freqs in the
Pegasus
> (and I've tried a Yaesu, too, and it was the monitor, big time) and I'm
> talking MAJOR noise from the monitor. Sometimes I'd just turn off the
> monitor for a QSO on that freq, or even change the refresh rate on the fly
> so the noise would go to another frequency. Today, tuning around the
bands,
> the monitor noise is almost gone . . . if I crank up the gain and look for
> it, I can find it, but it is certainly no longer a concern. Now I can't
> imagine that this antenna tuner is a magic bullet for getting rid of
monitor
> noise . . . or even make signals jump out of the air. And when I checked
> into a usual net this morning . . . several asked me what I'd done to
> improve my signal. Now I used to have a MFJ tuner with a Yaesu before I
saw
> the TenTec light, and I had the same monitor noise with that set up . . .
> any ideas? ? ? Think the fact that when I hooked up the 238A I ran all
my
> ground straps to the back of the tuner? ? ? The LDG had no grounding
point
> . . . and I was plagued with some RF on certain freqs and it wouldn't
tune
> up on them, just kept gyrating . . .
>
> Looking for answers from the Experts . . . but happy for now . . . hmm .
.
> . can't wait to get me an amp and run some real power . . .
>
> 73 de Rick, WQ8Q
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