[Elecraft] Confessions of grounding
Gary Smith
Gary at ka1j.com
Fri Oct 12 16:00:39 EDT 2018
I too have paid attention to Jim, K9YC's
advice. Nobody knows it all but he's
proven to know enough to be an authority
on the subject so I listen to what he has
to say.
To that end, I have put in a lot of effort
to have the Antennas, roof tripod and
breaker box tied together with #4 solid
copper wire. Antennas & Rx antennas are
connected via Polyphaser to the 8' ground
rod outside the shack.
The #4 ground wire snakes in under the
door jamb and terminates on a piece of
flat stock 6" long. I drilled 8 1/4" holes
in that and have SS 1/4" bolts nutted down
tight and use the 8 bolts as anchor points
for the equipment.
I have #6 insulated copper wire attached
to the K3, P3, Alpha amp, 6M amp, NCC-2
and Green Heron Controller. I yet need to
ground the computer, antenna switch, HI-Z
controllers and the Iota DLS-55 power
supply. I also need to find the best way
to ground the control wires to the rotor,
the HI-Z cables and the remote coax
switch.
Braid is much easier to use but since
things don't get moved much, I bent the
copper wire to fit the device to the table
and being ground wire, I like the idea of
solid wire & I wanted shielded so it
doesn't inadvertently touch improperly
down the line and create a ground loop. I
could have used coax as ground but it
wouldn't bend well and would always be a
PITA to deal with.
One thing for sure, I like how consistent
things seem to be when everything is
grounded. More, I feel much safer now.
73,
Gary, KA1J
> Hi Lee,
>
> When I got my K3 I rebuilt my shack from teh ground up, starting with
> the ground, with an eye to reduction of RFI. I took a lot of Jim's,
> suggestions, and I lost about 2 S units of noise. That process is
> detailed here:
>
> https://www.nk7z.net/rebuilding-the-shack/
>
> 73s and thanks,
> Dave (NK7Z/NNR0DC)
> https://www.nk7z.net
> ARRL Technical Specialist
> ARRL Volunteer Examiner
> ARRL OOC for Oregon
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