I don't have the expertise to be sure about it, but it always seemed to
me that it would be best to run the ground wire (grounded at both ends
and maybe a few places in between) in the same trench as the coax ...
but some distance above them ... in order to provide a sort of shielding
effect for the coax against induced currents from nearby lighting
bursts. I was once told that the electric utilities run a ground line
at the top of utility poles above the actual power lines for a similar
purpose.
Possibly induced currents in the ground wire would still couple to the
coax anyway, but I certainly don't see how running the ground wire with
the coax would be any worse than running them separately.
73,
Dave AB7E
On 1/28/2015 8:43 AM, Cox, Norman R. wrote:
Dear Group:
I am now ready to connect the tower grounding rod network to the shack
grounding system. The crank-up tower is about 30 feet from the shack. Is it
preferable to run the ground connection between the two along with signal
cables? Or is it better to run the grounding connection not so close to the
signal cables? I've seen people do it both ways, and can see a possible
benefit either way, but a lightning strike could throw either idea out the
window.
Thanks,
Norm
KE0ZT
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