Bob Alexander wrote:
> Howdy,
>
> I find myself in the embarrassing position of having to correct a stupid
> mistake that was made when my TH7 was reassembled after repairs from
> storm damage.
>
> As we were bolting the TH7 to the mast (after raising it over the house,
> around one tree and over another) we realized the mounting plate on the
> boom was not normal to the elements. It was about 5 ½ degrees off
> vertical when we leveled out the elements and tightened all the
> hardware. So, I have a tribander that works perfectly but has element
> ends on one side 18 inches above the boom and 18 inches below the boom
> on the other side. After the ordeal of getting it to the top of the
> tower we elected to leave it as is on the tower.
>
> Without taking the antenna down, the only way I can see to level out the
> elements is to put a shim between the mast bracket and boom plate. A
> tapered shim about ¼ inches thick should do the trick.
>
If you have to go up to the boom to mast clamp anyway, why not just
rotate the boom in the clamp?
73
Roger (K8RI)
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