slightly O/T, G1YGY suggested to me a very delicate method of checking that
the rotator and the thrust bearing(s) line up that I haven't seen elsewhere.
Measure the current drawn by the rotator as it goes round: it should be
substantially constant. If it goes up at one place, suspect misalignment. I had
a
slight bend in the stub mast as a result of the bearing having worn over they
years: it wasn't apparent on an in situ visual examination, but there was
some binding. The current measurement method showed up when the correct
alignment had been achieved. I ended up with a variation of less than 1% on a
T2X.
Of course, you do need an AC ammeter......
73
Peter G3RZP.
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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