[TowerTalk] Rotor loop coax

john at kk9a.com john at kk9a.com
Thu Aug 23 14:09:40 EDT 2018


I also do not do this. I assumed that the mast is grounded though the
thrust bearing and the rotator bearing. Of course multi-multi stations
like W3LPL can have rectification issues that do most of us do not have.
>From a lightning standpoint I have had no problems with the mast simply
bolted to the bearing and rotator.

John KK9A


From:	k7lxc
Date:	Thu, 23 Aug 2018 11:37:06 -0400


>  W3LPL has alerted us to the fact that passive intermod is often

generated within rotor housings, the solution for which is to bond
around the rotor. What do you recommend for making the connection to the
mast above the rotor?

    I dunno. What does the new N0AX grounding book say? My answer would
probably be to use some sort of stranded insulated wire with a hose clamp on
the mast and the bottom end connected to the tower - connection type your
choice with some anti-oxidant on each end.

    To be honest I've never done this.

Cheers,
Steve     K7LXC
TOWER TECH -
Professional tower services for amateur and commercial



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