I took a hit on the 40m yagi on top of my tower, and lost everything that was
inside OR on the tower - two rotators, an antenna switch, and a stackmatch.
Fortunately, the cable was unplugged at my entry bulkhead, but IMO you are not
necessarily protected by the rotators being inside the tower.
73, Pete N4ZR
At 12:47 PM 11/26/2006, Bill Turner wrote:
>I've read the PolyPhaser document on protection for ham stations but
>it is vague on how to protect rotator cables. First, I wonder how much
>protection, if any, is needed in the first place? In my tower, the
>rotator is inside the tower and the control lines run down inside the
>tower as well. Coming out from the tower at the bottom, they run
>underground to the shack, about 70 feet away. It seems to me that
>neither the rotator nor the lines will ever take a direct hit, but
>they could have some energy induced from the tower itself.
>
>So I'm wondering if I should bother with protection for the
>cable/rotator? My tower has taken two direct hits in the last two
>years and some damage has resulted, but not to the rotator system. I
>am in the process of upgrading the grounding for the tower and coax
>and that's what brought me to considering the rotator.
>
>All comments welcome.
>
>Bill, W6WRT
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