Reed, I suggest that you first check this with a dummy antenna listening on
a second receiver. Check all bands. It might be better if you make up a
clean tape or .wav file recording of your voice and use that to drive the
rig while you listen critically to the monitor receiver. That way you can
find out how the SP setting affects your voice quality, etc.
If no distortion can be detected with the dummy antenna, but can be with the
antenna, then it might be time to look at r-f in the shack problems.
Amateur Radio W5YR - the Yellow Rose of Texas
Fairview, TX 30 mi NE of Dallas in Collin county EM13QE
"In the 57th year and it just keeps getting better!"
----- Original Message -----
From: "Reed" <email@example.com>
Sent: Sunday, August 10, 2003 1:36 PM
Subject: [TenTec] Argo Speech Processor Question (was Argo V distortion)
Gang, my SP was at a setting of 3. While talking to a station in TX, with
my signal being 10 over S9, with SP on 3 there was distortion. This was
using TT hand mic or the Heil element in the MC-50. Turn the SP off & it
went away. I was on 17 meters using a GAP vertical. Belden RG-213 from rig
to antenna. I run rig through a Yaesu FC-757AT tuner to get a better match
with this antenna. Don't need tuner with Windom, but signals were stronger
at that time on the GAP. Have same problem with both antennas.
When I bought the rig back in the fall I was talking to a ham in FL who also
had the Argo V. We were on 17 meters & both of us could hear distortion
with the SP on. Now this only happens at voice peaks. Both of us turned the
SP off & distortion went away. I believe he was using a Zepp antenna.
A SP setting of 3, if band conditions are not good, the other station want
hear it. But if you are putting a 10+ over signal the other station will
hear it. Not all the time, but at times. Any higher & yea it will be all
Maybe the beads will work for the SP on. I'll have to get some & try it.
But strange if it is RF getting into mic it should be there all the time.
Not just when SP is on.
The station in TX listen very very carefully & then played my audio back &
there was NO distortion. But turn that SP on & there it was on peaks.
Maybe it is my higher pitch voice that is causing it?
I do know that the TT hand mic is very easy to overdrive the little rig. I
have to keep mine set at little less than 8 o'clock. The Heil I have found
that little less than 10 o'clock just barely lights the ALC LED on voice
Like Rick, I always leave the thing off. I thought it was & for the life of
me don't know how I managed to turn it on, but I did. It has been several
months since I was on phone with the 516.
I never had this problem with the Argosy I, Scout, or the Argonaut 515 with
RF in the mic. Of course none of those has a SP either. But I have several
Jap rigs that do & do not have that problem with them. I know, comparing
Apples with Oranges, but I believe there is a problem with the SP in the
516. And I believe that it might be the kind of voice pitch a person has
that can cause this. I may be way off base, but this might be why some have
the problem & some don't.
I don't know if I have a problem on any other band other than 17 & 20
meters. I don't get on those bands that much. On 20 meters I use a Hy-Gain
2 element beam. If it is on those bands, odds are it will be on the others
too if the SP is on. I'll have to try & see. There is a .001 or .01 cap on
the Heil mic. I don't know if there is one in the TT hand mic or not. Have
not been inside to see.
I'll let ya'll know if it is on the lower bands or not.
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