RF in the Shack

[koØm]

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I also lived in a third story apartment (but had no access to the roof).
I end fed a quarter wave wire on 80 meters against a counterpoise.


To effect a low impedance ground on 10 meters,
try connecting an 8-foot wire to your station ground,
with the other end extended clear of conductive material
(as if it were an antenna).

That's easy enough to try; radials cut for each band .

Yes, a wire used as an "artificial ground" cut to the right length(s) should work well. A couple of wires cut for the different parts of the band might be a good idea, 10 is a big band. The MFJ-934 "ground tuner" or something similar could work for you... as would an extra tuner you may already have used in "longwire mode" on the previously mentioned wires.


Mind the high voltages on those wire ends.

All equipment chassis have an individual ground connection wired commonly to the metal frame of the sliding window; outside, there is a piece of #15 wire connected to frame of the window that drops three stories to a grounding rod.

So, if I could, I would be putting an antenna tuner in the ground leg of the system?


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