[Elecraft] Confessions of grounding

[donovanf at starpower.net]

Hi Vic, 


You certainly have lots of RF in the shack, with your shack only six 
meters below your antenna, everything in it (including you!) is part 
of your antenna especially on the low bands. 


Please be sure your personal RF exposure level is safe 


73 
Frank 
W3LPL 

----- Original Message -----

From: "Victor Rosenthal 4X6GP" <k2vco.vic at gmail.com> 
To: elecraft at mailman.qth.net 
Sent: Saturday, October 13, 2018 4:03:11 AM 
Subject: Re: [Elecraft] Confessions of grounding 

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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