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John Galt
Forward, March
Premium
join:2004-09-30
Happy Camp
kudos:5
reply to John Galt

Re: Grounding and antenna diagram - appreciate comments

This is essentially what you want.

I did this for another project (a taller tower) so it's a bit overkill for your situation, but the general idea is the same.

chisel
Premium
join:2009-09-01
Henderson, KY

1 edit

TYVM! I was editing my diagram to show what I thought you said.
Yes, lightning is a definite possibility since I'm in western KY, and ground wire is #6 solid bare.

I believe the 32 dB amp. (for the 4G connection) is bi-directional since it has both uplink an downlink dip switches. RSSI and SINR were -76 and 26 to 30 with no amp. and antenna 4' off the ground at the pole site. I was planning to run both the coax and Cat 5E in the same trench but in separate conduit. Will run ground 1' away.

So at the bottom of the pole keep the grounding bar and and do not attach it to a ground rod? Or skip the grounding bar and attach the arrestors to the ground wire running around the pole? How does this sound - attach ground wire to each antenna, run the wire down the pole and attach it to circular wire around base of pole.

I'll do what I'm told, no prob.



John Galt
Forward, March
Premium
join:2004-09-30
Happy Camp
kudos:5

1 recommendation

Since the pole is metal, you can bond the equipment at the top directly to the pole. The overall objective is to keep everything at the same potential, so if you wait to bond to the grounding at the bottom, the potential rise will cause the magic smoke to come out.

The inductance (essentially resistance) of the metal pole is far less than the wire you would run down the pole, so the strike will take that path rather than going down the wire.
--
Don't ask questions -- just do as you're told.


chisel
Premium
join:2009-09-01
Henderson, KY

1 recommendation

If I understand you correctly, bond the antennas to the metal pole, but do not connect a ground wire to the antennas and run it down the pole. Bond bottom of pole to buried ground wire as in your diagram.

After reading some comments here on DSLreports, I have decided to skip the LMR-600 and go with Andrew Heliax LDF4-50 assuming I can get it at a decent price. I have been researching cables and all of the various connectors...I don't see how you all keep it straight. It seems every brand and every size cable has a different prep. tool plus different ways to attach the connectors.

JG, thank you VERY much for your help.