TIP: Click on subject to list as thread! ANSI
echo: ham_tech
to: RAY WADE
from: LES WILSON
date: 1996-05-30 23:29:00
subject: BNC replacement

 RW> As to the nut loosening, Loctite (a brand, there are others as well)
 RW> makes various grades (strength level) of liquid 
 RW> thread locking products.
 
Ahhhhh... good thinking.  I never thought about using the stuff before.  I'll 
have to run down to the auto parts store and grab some!  Thanks for the tip!  
That _should_ solve the problem.  I did think about using epoxy, but if the 
connector needs replacement, removal can be a pain trying to chip the stuff 
away.
 
 RW> But don't those Motorola antenna connectors use nuts to mount them in
 RW> the case of the radio? Seems like any connector 
 RW> that is not molded into
 RW> the case when the case is made, would have the same trouble.
I am not sure how it is done... but since they are no longer manufacuring 
radios with BNC connectors anymore, it is clear that the screw threads are 
the preferred way of doing things.  I remember working with the Suffolk 
County Police Department when they were using Motorola HT440 radios on the 
VHF band with Larsen Kuldukie antennas.  Radios were in the shop constantly.  
They even put out an in-service training video on proper care for their 
portacoms... "remove the antenna before storing the radio in the glove 
compartment..." and even showed a bunch of pictures of damaged radios, 
antennas, connectors, etc...  Eventually, they got rido  of those and settled 
for the MT-1000's with factory antennas, and presumably, less problems.
 
I plan on getting a rubber washer, with an inside diameter the same oas as 
the outside diameter of a BNC, and using that to prevent the "rocking" action 
of the antenna as it sits on the radio.  That is also another sure-fire way 
of damaging the connector or antenna.
 
Thanks again for the tip!
--- Maximus 2.01wb
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* Origin: de WD4SGU * Mike Ward * The Shack TOO (1:2613/150)

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