[50mhz] cushcraft question

[Bill W5WVO]

Metal galling (seizure) seems to be a common problem with Cushcraft stuff. I
suspect it has something to do with the quality of metal they use in their
fasteners and other non-aluminum parts. Having been badly burned by this on
a Cushcraft antenna (had to cut all the u-bolts off with a hacksaw), I now
always use an anti-seize compound on all threads, especially on stainless
steel fasteners. Penetrox is good, and is available from many ham radio
dealers. Copper-based anti-seize compounds available in most auto parts
stores has also worked fine for me, though I've heard some people recommend
against using a copper-based compound around aluminum. Be careful on SO-239s
that you carefully restrict it to the coupling threads, and don't let it get
into the body of the connector, as it is conductive.

Bill W5WVO

Greenacres113 at aol.com wrote:
> i'm considering the Cushcraft  3 el.
>
> i've had two of their 11 el. 2 mtr fm antennas. both my dads  & mine
> suffered coax connector seizure after a few yrs.  you can't get  the
> pl259 off any
> way. i cut the coax & fabricated a new plate with a new  s0239. it
> was the only easy answer. i wonder if using 'no alox' or the common
> electricians metal conduit helper will prevent the seizure.
>
> i've not had this problem on other antennas
>
> bob k9il
> Moderator: Ray Brown, KB0STN
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