For whatever it is worth, I use 1" copper tubing, running down the back
of my desktop, then connecting by about 8 feet of #8 copper to an 8-foot
ground stake. Everything in my shack handling significant power or RF
is bonded to the tubing. My house system ground is on the diametrically
opposite side of the house, over 100 feet, so I have settled for what I
have, plus *lot* of ferrite on various leads in my shack. It's quite
quiet unless my local power company contributes with badly maintained
power lines, in which case I harass my power company's RFI guy
73, Pete N4ZR
On 12/3/2023 5:54 PM, Jim Brown wrote:
On 12/3/2023 9:23 AM, Bob McGraw wrote:
Jim, K9YC, has very strong merits in that each and every piece of
equipment MUST be bonded to a single common point. I use the
station power supply for my single common bonding point. I DO NOT
use an external dedicated ground as it would be 35 ft in length and
serve as an antenna to pick up noise. After all, that is 1/4
wavelength on 40M.
Yes, but that's a VERY oversimplistic description. Study N0AX's ARRL
book on the topic, to which I contributed, and/or this pdf of slides
for a talk I've done at Visalia, Pacificon, and to various large clubs.
http://k9yc.com/GroundingAndAudio.pdf
The VERY short answer is that everything that's connected to the rig
must be bonded together by short fat copper AT the operating desk.
That common point must be bonded to every other ground in our home,
also by the shortest practical fat copper. In the shack, I mostly use
#10 stranded; outside, I use #6 stranded.
73, Jim K9YC
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to pete.n...@gmail.com
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com