> >few months back, I haven't operated on 20cw using computer keying
> since
> >whenever I hit a function key, it keys up constantly. Oh boy -
> another
> >rough start to the Sprint. So I end up running low power on 20m and
> have
>
> This sounds like you are getting RF into your computer -- try adding
> some FE beads or split cores to the keying line right next to
> the keying interface. You can also disable the PTT signal in
> TR-Log and this will also help with RFI problems. Do this
> in the CTL-J menu.
>
I ran into a similar problem when I used an antenna about 50
feet above the shack. This particular keying box was built with twisted
pair cable. I have another box that uses a shielded cable and the RFI
problems go away. For some reason the shielded box would not key the
ptt line so I had to use the old box. Good thing I did not need the
other antenna!
Mike
W0MU
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