Don't forget about the length of the ground conductor as well. I've seen
and found more than one instance where the ground conductor was a 1/4
wavelength on the band which caused RFI in the station. That puts the
station at 1/4 wave or a maximum voltage point above ground. It was
acting like a receiving antenna in the presence of the transmitted
RF. For that reason, I do not use an external ground on my station
equipment. It is not needed.
73
Bob, K4TAX
On 2/2/2019 7:32 PM, Jim KO5V wrote:
Yeah, that's why I mentioned the length. It was an early "teaching moment" in
my ham radio career. Surprisingly, it only took me a few minutes to figure out what I had
done, but I had to move the power supply and workbench, and coil up the 706's power cord.
I didn't like the new, new shack layout as much as the old new one, though. It also
proved to me that some chaos is OK - being too neat has always bitten me somehow!
73, Jim KO5V
"10' is almost exactly a half-wave on 6 meters. Your power cord was a
"worst case" for RF feedback on six.
73,
... Joe, W4TV"
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