Nick Pair wrote:
> I vote for the 4 pole folded dipole with the dipoles spaced 90 deg.around a
> mast horizontally and phasing harness distance vertically. The commercial
> type where the dipoles are welded to arm on half opposite feed point. They
> have survived many a strike in commercial installations. You would want to
> use discharge devices above them on support mast and have everything well
> bonded together and to lightning down wire to whatever ground is present at
> tower base. There should be a grid if this is a community water system and
> access to this is important. The individual patterns on these are great
> enough that you get pretty good omni out of a set of four. Use factory
> spacing from support for best omni.
> Also if you can run the feed line horizontally from the support pole base
> through a grounded run of metal conduit just big enough to accommodate the
> coax will choke the large current surge down to a less than melt down level.
> About 20 feet will do it.
> That's my $.02 worth anyway,
> Nick WB7PEK
I agree that this seems to be the simplest solution. If lightning
takes out this array, then I'd think about the Yagis mounted
around the tower at a lower level.
Remember the USS Liberty (AGTR-5)
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