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I was wondering if anyone else has had a problem like this: 28.0 - =
28.5Mhz on my Omni D (series b) acts strange when attempting to tune up =
my 10 meter dipole using an MFJ antenna tuner. When I reach a good match =
(with the Omni mode switch in the lock posistion), the SWR meter on the =
Omni D dips to 1:1, but then starts slowly creeping up, even though I'm =
not touching the antenna or XMTR adjustments on the tuner. If I attempt =
to transmit in CW mode when I have a good match, drive is low. An =
increase in drive (to the point that the ALC light is just coming on) =
causes the SWR to go up again. If the key is held down, the SWR will go =
high and then creep down slowly. (This is observed on both the Omni =
meter and the antenna tuner meter).
I am sure the problem is realted to the ALC, but not sure exactly what =
is going on. The problem only occurs on 28.0 - 28.5 Mhz. All other bands =
work fine- once the antenna is matched, the SWR stays low, as expected.
Any ideas?
Thanks,
Jason KA7UAM
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<DIV>
<DIV><FONT color=3D#000000 size=3D2>I was wondering if anyone else has =
had a problem=20
like this: 28.0 - 28.5Mhz on my Omni D (series b) acts =
strange when=20
attempting to tune up my 10 meter dipole using an MFJ antenna tuner. =
When I=20
reach a good match (with the Omni mode switch in the lock posistion), =
the SWR=20
meter on the Omni D dips to 1:1, but then starts slowly creeping up, =
even though=20
I'm not touching the antenna or XMTR adjustments on the tuner. If I =
attempt to=20
transmit in CW mode when I have a good match, drive is low. An increase =
in drive=20
(to the point that the ALC light is just coming on) causes the SWR to go =
up=20
again. If the key is held down, the SWR will go high and then creep down =
slowly.=20
(This is observed on both the Omni meter and the antenna tuner=20
meter).</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>I am sure the problem is realted to =
the ALC, but=20
not sure exactly what is going on. The problem only occurs on 28.0 - =
28.5 Mhz.=20
All other bands work fine- once the antenna is matched, the SWR stays =
low, as=20
expected.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>Any ideas?</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>Thanks,</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>Jason =20
KA7UAM</FONT></DIV></DIV></BODY></HTML>
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