O.K., I see what you mean.  Well here is another trick, and it really 
does work.  If you have a ways to go to a ground and want to keep rf 
out, use a run of coax using the center as the ground wire and bypass 
shield at each end to this wire or I should have siad that other way 
around, with a .001 cap.
73s
Butch Bussen
wa0vjr

xOn Sat, 23 Feb 2008, Mike Duke, K5XU wrote:

> If you are using it to give some directivity to an antenna,  yes.
>
> If you are using it as a place for rf current to go instead of a shack
> ground, it really isn't critical.
>
>
>
>
>
> Mike Duke, K5XU
> American Council of Blind Radio Amateurs
>