[Elecraft] Proper grounding for P3.

[Dave Cole (NK7Z)]

Hi Dave (K1WHS),

I have a bit of an description on how I removed most of my RFI from the 
shack located at:

https://www.nk7z.net/category/info/rfi-mitigation/constructing-a-shack-for-minimal-rfi-from-the-ground-up/

Scroll to "Rebuilding the Shack from scratch".

The link above is a link to a set of articles on removing RFI from your 
environment, so you may find other articles of interest.

Don't forget to check out K9YC's very informative and useful articles at:

http://k9yc.com/publish.htm

Look under "Ham Radio Topics", there is more information than you can 
absorb in a day at his site, and all of it is good.


73s and thanks,
Dave
NK7Z
https://www.nk7z.net

On 03/28/2018 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.   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. 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.
> 
> Dave K1WHS
> 
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