My shack is only about 6m below my antenna, and although there is a
concrete roof between us, I had problems of RF pickup in my computer. My
antenna is balanced, I used a lot of ferrites on the cables, and bonded
all of the equipment together with copper straps. But the biggest
improvement came when I bonded the three main parts of my metal office
desk together and to the equipment.
73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/
On 12 Oct 2018 23:00, Gary Smith wrote:
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
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