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[TowerTalk] antioxidation grease

To: <towertalk@contesting.com>
Subject: [TowerTalk] antioxidation grease
From: "N4VHA" <n4.vha@computeralarm.com>
Date: Tue, 29 Mar 2005 22:30:00 -0500
List-post: <mailto:towertalk@contesting.com>
The first time I used a compound called 'NO=OX' was when I was experiencing 
trouble receiving on my TS440s.  I took loose the miniature RCA connectors in 
the receive section, found what appeared to be tarnish.  I cleaned the 
connectors real good with a brass brush and liberally applied NO-OX.  It made a 
tremendous improvement in the receive.  Next I found that I was having some RF 
in my transmit.  I found the same oxidation on the PL259's, cleaned them real 
well, added a little solder to make the connection tight then liberally added 
NO-OX to the center and particularly to the threaded areas.  All RF disappeared 
unless I was over driving the audio and no SWR or loss was found.  Yes it makes 
since to be liberal with the application and it also is apparent that a tight 
connection is achieved since the oxidation compound if conductive is only 
conductive in micron dimensions.   A good friend of mine made another good 
suggestion to me and that is use a good tape like 3M-33 first t
 hen use electricians putty then tape again.  The best part of the tape first 
is that if you want to take it off it comes off easier.  The only problem is 
that the putty has to extend below and above the 33 electrician tape to get a 
good weather seal.  Now think about this if you don't use the antioxidation 
compound and you don't have a tight connecting and the connection has any loose 
connection, in a high power situation (particuallary) you will build up carbon 
that will cause all kinds of stray noise that you don't want to hear.  I may 
not have covered it all here but I thought you might like to hear my experience.
_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather 
Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions 
and ask for Sherman, W2FLA.

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