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cushcraft A3S Tribander HF beam

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April 22nd 11, 04:28 PM posted to rec.radio.amateur.antenna

D@LS

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cushcraft A3S Tribander HF beam

On 25 Apr 2004 23:23:13 -0700, (Mark Keith) wrote:

'Doc wrote in message ...
Les,
Hygain uses the same insulator for several of their
antennas, and it can be a problem with all of them.
Replacing it with a 'solid' insulator of some kind is
one solution. I'm still hunting for a replacement for
one for an 'R-7' (the only difference is in the length).
Thought about using 'Delrin'(sp) or some other type of
plexiglas/perspex, but haven't found a source yet.
Good luck...
'Doc

I've got a A4S which has the same thing on the driven element...I've
often wondered what I'll do if that thing ever breaks...Guess the
delrin rod is one idea. I've wondered about a wood dowel that is
varnished as one solution...Or convert to boom grounded, and replace
with aluminum...But then you'd have to add a matching device...MK

Call a fiberglass place and get a cheap resin/hardner and fill in the center.
Anything you don't want it to stick to, use vaseline. A pint of the r/h should do it.

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