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Re: Elecraft K3s, etc. bonding

Posted by N4ZR on Apr 23, 2020; 2:27pm
URL: http://elecraft.85.s1.nabble.com/Elecraft-K3s-etc-bonding-tp7659942p7660013.html

I think the answer lies in the ground bus.  I used a 3/4" copper water
pipe along the back edge of my desk, with a short pigtail of #2 wire to
the K3.  I used a yellow-jacketed Home Depot ring terminal on both ends
of the #2, and metal-tapping screws to connect to the bus.

73, Pete N4ZR
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On 4/23/2020 8:37 AM, Randy Farmer wrote:

> I'm currently in the process of wiring up my new station and I happen
> to be working on the equipment bonding phase for my pair of K3s SO2R
> station. I'm doing my best to get decent connectivity between the
> station components, but can't really figure out how to terminate large
> (AWG 10) wire to the teeny 6-32 ground screws on the back of the K3,
> especially since something like six bond wires need to be attached to
> the transceivers. There appear to be no available ring terminals that
> will fit these small screws; the smallest I can find are for #10
> studs. Even by using a threaded standoff installed in the K3 ground
> nut and a longer screw to stand the rings off, stacking a bunch of
> these huge terminals is extremely difficult. Providing some means of
> reasonably quick disconnect for servicing purposes is equally
> difficult. Exactly how can I go about connecting big wires to little
> ground posts?
>
> 73...
> Randy, W8FN
>
> On 4/20/2020 10:22 PM, Jim Brown wrote:
>> On 4/20/2020 6:08 PM, Tom Norris NB5Q wrote:
>>> I'm asking what method and
>>> attachment point, to each piece of equipment, you experienced K-Line
>>> owners
>>> use to bond the K3s, P3, SP3, etc. and then on to the station ground.
>>
>> I use wires soldered to screw lugs, making sure that the attachment
>> point is not insulated from the chassis by paint. Some of the
>> equipment has a dedicated grounding screw. Shells of DB connectors
>> SHOULD be bonded to the equipment chassis, but not always -- some
>> mfrs screw up and fail to do that.
>>
>> Some of my equipment goes out in the field from time to time, so I
>> use single circuit Power Pole connectors to make that easy. I'll use
>> 2-6" between the lug and the PowerPole, then make a loop soldered to
>> a PowerPoles that connect to each piece of gear in the string (so
>> each connector has two wires). There are lots of suitable variations
>> on this, depending on how the shack is laid out.
>>
>> These are the slides for my talks on station power, grounding, and
>> bonding. http://k9yc.com/GroundingAndAudio.pdf
>>
>> 73, Jim K9YC
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