Have you ever considered that providing a better local RF "ground" could
make "RF in the shack" problems worse?
Take the example of a half-wave dipole fed with coax that is a multiple
of a half-wavelength long and bonded to a "good RF ground" at the shack
end. If there is no choke balun at the feedpoint, significant
common-mode current will flow down the outside of the coax braid because
it represents a low impedance path to earth. The better you make that
"RF ground", the higher the common-mode current and the greater the
potential for RF in the shack.
Steve G3TXQ
Martin Ewing wrote:
> Yes, but... It's still worth trying to establish a local RF "ground" --
> ensuring that everything in your shack is bonded together. No antenna
> system is perfect, and many of us have some RF in our shacks.
>
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