Hi Dave,
Here's my take on Grounding and Bonding for ham radio. Most of it was
incorporated in Ward Silver's new ARRL book on the topic.
http://k9yc.com/GroundingAndAudio.pdf
Yes, you should add a suitable bonding point for any gear that lacks it.
Just make sure that whatever point you choose isn't insulated from the
chassis by paint. :)
On 3/28/2018 11:54 AM, David Olean wrote:
I have been rebuilding my little hamshack these last few days. I am
only operating on one band (160M) so there is not much gear involved,
but I am trying to do it all correctly to minimize noise pickup from
common mode signals arriving in the shack from many RG-6 beverage feed
lines. Most of my work is outdoors preventing common mode noise from
propagating along the RG-6 coax. To help things along inside the
shack, I have installed a large copper buss bar with numerous
attachment points for wide braid connections to all the AC powered
equipment on the operating bench plus anything else that has RF or
audio involved. I have bonded everything to this buss bar and have
routed a couple of #8 ground wires in conduit from the buss down to
two ground rods situated below the shack. I have a separate ground rod
about 25 ft away for grounding the beverage feed lines.
One of the most important rules about grounds is that you can have as
many as you like, but in a premises, all MUST be bonded together.
I noted that several shack items had no provision for grounding. One
of them was the P3 panadaptor. There is no ground on it. The inside is
pretty empty so there is plenty of room to install a ground lug. My
question is will a lug modification bother some new accessory/option
that Wayne 'n Eric have planned for the empty space? Maybe an
Elecraft Sno-Cone dispenser or Elecraft coffee maker? The logical
spot for a lug is on the back panel. Am I safe there?
Is it good practice to bond the P3 chassis to ground? It gets 12 VDC
power from an external source, and it seems logical to have a
separate ground point and not count on coax cable shields for any
ground connection.
Yes.
I had a DX Engineering NCC-1 with no ground as well as the computer,
recording device, an Astron power supply etc. They are now all bonded
to the copper buss bar.
Great. The only thing better is daisy-chain bonding from
chassis-to-chassis of interconnected equipment. Study the tutorial.
73, Jim K9YC
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