[Towertalk] Grounding mast to tower

[Tom Delker]

I have measured the resistance between Thrust Bearings/Rotors and their mounting
points. It isn't a pretty picture, usually something like 10-30 ohms.  This could
explain why the rotor is usually one of the first to go as a result of a strike or
nearby hit.

I take a #4 flexible conductor and tie it to the mast and then the tower below the
rotor mount. No problems to far.

-- 
Thomas M. Delker - K1KY CFO#395 - Smyrna, TN
A.R.R.L. Asst. Section Emergency Coord. - Middle TN  http://www.tnarrl.org
Middle Tennessee SKYWARN Homepage: http://www.mtsh.org
C.A.T.S. (W4CAT) - 147.30/145.23/146.955/145.49/145.17/223.98/444.45/444.65
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Tennessee Contest Group (K4TCG) - http://www.k4ro.net/tcg.html