Hi Pete,
Why fight the dragon if you can persuade him to take another path?
Why is the lightening visiting your rotor contol box anyway?
Could it be that tastey AC power line ground at the other end of
your AC line cord?
My tower base is only 15 feet from the underground AC power feed to
the house. Since I added a heavy ground lead from my tower base
to the AC power feed ground, my VHF shack no longer suffers
from lightening hits. Of course I still make sure the 90 foot tower is
grounded
with local lightening rods as well.
Keep all leads at the same potential. That includes, feedlines, AC power
ground, and anything else connected to your expensive gear. Just leave
the gas pipes alone. Dragons and gas pipes don't mix.
73, Jim Shaffer, WB9UWA.
----- Original Message -----
From: Pete Goudreau <goudpj@mac.com>
To: <towertalk@contesting.com>
Sent: Wednesday, March 20, 2002 9:31 PM
Subject: [Towertalk] rotator cable lightning protection
> After some research, including towertalk archive searches, it looks
> like the only protection units out there for control and rotator
> cables are shunt types - Polyphaser and I.C.E. come to mind. While
> researching the topic, there also seems to be a goodly number of
> stories of lightning surges getting past exploding MOVs in said
> protectors and blowing up most of the equipment in the shack.
>
> Not being much of a fan of MOVs in the first place, I figured there
> had to be some series type protectors out there somewhere but I'm not
> finding them at all. Design is relatively easy but extremely
> difficult to test correctly.
>
> Anybody have any suggestions as to the safest way to keep the lines
> connected but well suppressed?
>
> Thanks in advance,
> Pete, AD5HD (ex-WB5RKC)
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