The problems of hum and RF pickup are reduced by simply connecting all the 
equipment chassis together with low inductance conductors. It’s a safety 
feature as well, providing a backup to the power cables’ ground conductor, and 
ensuring that disconnecting a coax jumper won’t suddenly put you in the path of 
an unexpected current. That doesn’t cost thousands and is at most a few hours 
of work.

Serious lightning protection is something else, and can be very expensive. But 
although bonding the equipment won’t protect you against direct lightning 
strikes, it does help to keep everything at the same potential and reduce the 
possibility of damage from less violent static discharges.

Victor 4X6GP 

> On 24 Apr 2020, at 3:19, Randy Lake <randyn1...@gmail.com> wrote:
> 
> Ok. I am sure I will get the wrath of God for going in this direction but
> here we go. I was licensed in 91 and have put together 2 average so contest
> stations with no grounds. None what so ever except power grounds. I have a
> bunch of equipment, not intentionally interconnected, that has had no issue
> in all that time. If I had seen something that led me to fix an issue I
> certainly would have. Safety ? Maybe. I am just not sure that the thousands
> of dollars that could be put into this type of grounding is necessary, in
> my part of the world.
> So, no grounds on lugs of any equipment, no grounds on tower (100') no
> grounding of coax. Aside lightning strikes, which I have had and not issue,
> what can I gain from spending the $$$ ?
> If someone can convince me I will consider.
> 
> Randy N1KWF
> 
>> On Thu, Apr 23, 2020 at 8:38 AM Randy Farmer <w...@windstream.net> 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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>> 
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> 
> 
> -- 
> Randy Lake N1KWF
> 73 Gunn Rd.
> Keene,NH
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