how far is the antenna form metal or the radio? IT could be an RF feedback
issue. I know when I was setup in the sun room I had a similar problem on 75
meters and it really turned out to be the antenna was close to the auto
tuner and I was getting RF feedback in to the tuner which I'm learning
happens with external auto tuners. Not all the time but enough that I went
to a manual one in the house.
----- Original Message -----
From: "Michael Ryan" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, November 10, 2013 9:37 AM
Subject: ATU issues?
> Hi all:=20
>
> Think I gotta problem with my tuner. In a dummy load SWR of 1.0/1. Tuner
> tun=
> ed just fine on the antenna on 40M, however when I switched to 80M, on the
> a=
> ntenna side, SWR was fluctuating as high10.0/1. Back on the dummy load,
> the=
> SWR was flat. My tune up power is about 100W. =20
>
> What do you think might be the issue?
>
> TNX 73: Michael de VO1AX