If your feedlines and control cables do not go all the way down
the tower to ground level, the potential for extremely high
lightning induced voltages to travel down your cables towards your
shack and equipment is real. With the cables traveling inside the
tower to ground level, as is recommended for maximum lightning
protection, and then along or under ground to the shack entrance
panel and SPG, the potential vs. ground is reduced to a level that
surge protection devices can safely handle. The trade-off for
somewhat shorter cable runs is not worth the risk in my opinion.
73, -=Rog-K9RB=-
----- Original Message -----
From: Bob Alexander <realex@flash.net>
To: Bill Otten <res0958z@verizon.net>; TowerTalk
<towertalk@contesting.com>
Sent: Wednesday, January 09, 2002 6:32 PM
Subject: RE: [TowerTalk] Using guy wire to carry in coax lines?
>
> Hi Bill,
> I have used a similar arrangement to what you describe for 15
years of so.
> The difference is that I added a 4th
> "guy" just below my lower guy wires. This extra guy is 1/8 "
aircraft
> cable and has supported as many as 3
> 1/2 inch heliax lines, and 2 control lines. I would not want
any added
> stress on any of the primary guy wires.
> 73, Bob, W5AH
>
>
>
>
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________________________________________________________________________
This list is sponsored by the new eHam.net Store. When you buy products
like ICE filters, Array Solutions StackMatch, or M-Squared Antennas from
the eHam Store for the same price you pay direct, a portion of the sale
price goes to support this list. Check it out at http://www.eham.net.
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