[Elecraft] Pin 1 and Grounding Post on the K3s

[Hal Massey]

Fixing a common misconception about grounding… 


Grounding does not get all the devices at the same potential. It just minimizes the potential difference among them. “Where there is metal there is resistance and if there is any current there will be a voltage (period). 

This is one of the biggest urban myths around and the source of many difficulties for lay folks trying to understand grounding. -BSEE and MSEE here. 

A practical application of this for hams is to keep the runs short and low inductance too!

73

> On Jun 24, 2021, at 06:27, John Oppenheimer <john at kn5l.net> wrote:
> 
> Hi Peder,
> 
> K3s grounding post is also one of the board ground plane to enclosure
> connections. See Assembly manual, Page 68, Figure 97.
> 
> John KN5L
> 
> On 6/23/21 9:58 PM, Peder Kittelson wrote:
>> I have been following the Pin 1 grounding discussions with interest.  I
>> have one of the last Elecraft K3s Transceivers built at the factory and
>> love using it.
>> 
>> I wonder if the grounding post on the back of the K3s attaches directly to
>> the case or runs to the motherboard ground?
>> 
>> I currently have the grounding post attached to an RF grounding strap
>> running as a single point ground between all my devices to keep from
>> voltage differences.
>> 
>> Should I be concerned?
>> 
>> 73 to all,
>> 
>> Peder, W7RPK
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at 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 haljr.massey at gmail.com