[Elecraft] Re: Best way to secure RF ground from 2nd floor
Larry Dodson
larrydod at googlemail.com
Wed Feb 20 07:16:13 EST 2008
I recently tried this on my multi band offset center dipole and would
be interested in any comments.
300 ohm twin feed from antenna to near ground level; box there
containing 4:1 balun which connects via RG8 to rig in second floor
room. In the box ( one foot above ground) I connected outer shield of
coaxial to horizontal copper earth pipes below ground.
I was getting RF in shack and poor SWR on 80M band. The result now is
that I get good SWR across 80M band and no RF in shack. I am getting
good signal reports, but have not had the opportunity to check on the
amount of power that is actually getting out of the antenna.
Larry (G0IKE) K2 #2424
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