Re: [amsat-bb] KLM 2m-14c relay

["SV1BSX" <sv1bsx@xxxxxxxx>]

 Hi Kyle & Group,

have you checked if the problem is not from Coaxial-relay but ie from a
faulty (cut, failed) "phase-stub", matching-stub, coaxial's piece,
bad-connector etc. between relay and antenna?

Please, reverse the connectors in the output of relay... if the noise
increasing again when powering the relay, definitely the relay has problem.

The Coaxial relays can be repaired. Usually they have a "tap"(spile), so by
removing this tap the "inside world" is viewed, close to internal contacts.
 Some other models, they have a construction method like a "sandwich", so is
also possible
to separate carefully the opposite metal plates.

Take a look inside for "dirty" contacts... in case you have dirty-contacts,
a contact-cleaner spray will do the job perfect.

But if you have destroyed contacts, ie from high power, the relay is for...
garbages!

 Another possibility is the coil... are you sure if the common-contact is
moving when powering the relay?  Check the '"good contactivity" between CC
(Common Connector), NC (Normal Close) and  NO (Normal Open) connectors by
using an Ohm-meter or a "short-circuit" tester.  (CC and NO by powering the
relay, of course !)

 Finally, If  the coil is dead, is possible to re-winding (if your relay is
good enough and expensive).

Hope that helps you. Good luck.

73, Mak SV1BSX


sv1bsx@yahoo.gr
http://www.qsl.net/sv1bsx

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----- Original Message -----
From: "Kyle Yoksh" <yokshs@totalusa.net>
To: "amsat-bb" <amsat-bb@amsat.org>
Sent: Tuesday, April 04, 2006 4:41 PM
Subject: [amsat-bb] KLM 2m-14c relay


> Hi all,
>
> I may have a faulty relay on my KLM 2m-14c antenna. This just started
> happening within the last week or so.
>
> When powering the relay (to select LHCP), my noise level jumps from s0 to
s7.
> Rotating the beam doesn't change the
> noise level.
>
> Has anyone had this problem? Does anyone have a source for a replacement
> relay?
>
> Thanks and 73,
>
> Kyle Yoksh
> K0KN
> Olathe, Kansas
> Amsat# 35249
> ----
> Sent via amsat-bb@amsat.org. Opinions expressed are those of the author.
> Not an AMSAT member? Join now to support the amateur satellite program!
> To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
>


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