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Re: KLM Antenna relay



My problem was corrosion of the board wiring itself, not the relay.  I
hardwired the circuit right on the board and sprayed a protective covering
(don't remember what i used) and its worked fine ever since.  The 440 relay
is in a box and has always worked fine.

Mal, NP2L

NP2L@worldnet.att.net
----- Original Message -----
From: MCGWIER ROBERT <rwmcgwier@home.com>
To: <amsat-bb@AMSAT.Org>
Sent: Saturday, December 30, 2000 7:39 AM
Subject: Re: [amsat-bb] KLM Antenna relay


> Dave:
>
> Be very happy you live in Cal.  for this antenna.
> I replace that relay here on the east coast
> (acid rain, big changes in temperature and
> humidity levels), even with extra protection on it,
> FIVE TIMES in 7 years.   The second time I
> had one fail, I ordered two and always kept
> an extra on hand for the inevitable failure.
>
> The relay itself performed well (little insertion
> loss) to be such a likely point of constant failure.
>
> Bob
>
> ----- Original Message -----
> From: "Dave Guimont" <dguimon1@san.rr.com>
> To: <amsat-bb@AMSAT.Org>
> Sent: Friday, December 29, 2000 3:07 PM
> Subject: [amsat-bb] KLM Antenna relay
>
>
> > Several people in the past few months were looking for a replacement
> > for a KLM 22C antenna relay.
> >
> > Look no longer...Performance of my 22C on the O10 downlink has been
> > deteriorating gradually, and I finally took the antenna down, and
> > investigated.
> >
> >
> > With the poor quality relay supplied it is a wonder it lasted the
> > twelve years or so it was up there!
> >
> > If I ever knew how it was connected to the antenna, I had forgotten,
> > but when I traced the circuit it became readily apparent that it is
> > nothing more than a double throw single pole relay to change
> > polarity.  The one supplied is double throw, double pole, but two of
> > the poles are not used...
> >
> > I just replaced it with a junk box relay, hard wired, and my antenna
> > performance on O10 is better than it ever was.
> >
> > Even if yours is still working you may be advised to inspect it.
> >
> >             73, Dave wb6llo@amsat.org
> >                     Disagree: I learn....
> > ----
> > Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> > To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
> >
>
> ----
> Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
>

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