[Elecraft] Proper grounding for P3.

[Don Wilhelm]

David,

If your goal is to reduce noise, hum, and buzz in your station, then ---
much better than "grounding", use the "Bonding" techniques suggested 
(and tested) in K9YC's information on the subject.
Basically, you bond from enclosure to enclosure with braid or heavy wire 
- follow along the path of connecting audio cables and coax.  When you 
finally get to the end of the path (amplifier or tuner), then you can 
connect to your station ground.  Connecting each piece of equipment 
separately to the station ground can actually make the hum, noise, and 
buzz pickup worse.

You are NOT grounding for RF, but for lightning and AC mains protection 
for you and your family and pets.
Mother Earth is not a SINK for RF - that is what common mode chokes on 
the coax are for, use effective ones.

73,
Don W3FPR

On 3/28/2018 2:54 PM, 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.   I noted that several shack items 
> had no provision for grounding.  One of them was the P3 panadaptor.