[TowerTalk] Reliability (or not) of SMA connectors

[W7TMT - Patrick]

Another suggestion...

A small drop of glue from a hot melt glue gun works fine based on my experience with a problematic connector (not an SMA) on a diesel engine. Since the material is not porous it will stick just fine but can be popped off with a fingernail when the time comes. Applied on the outside right at the interface between the nut and the threads would be the safest location and easiest to remove. At least that's what worked for me.

73,
Patrick, W7TMT

-----Original Message-----
From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of Michael Tope
Sent: Sunday, December 4, 2022 10:58
To: towertalk at contesting.com
Subject: Re: [TowerTalk] Reliability (or not) of SMA connectors

A tiny blob of something really viscous (so it won't crawl up into the threads by capillary action) like 5 minute epoxy or JB weld would probably work. You could test it on a nut and bolt the same diameter to make sure it isn't too hard to remove.

73, Mike W4EF.....................

On 12/4/2022 10:28 AM, Lux, Jim wrote:
> On 12/4/22 9:13 AM, Pete Smith N4ZR wrote:
>> My first thought is/was that there might be some sort of conductive 
>> Loctite-equivalent that I could use. Nothing found so far.
>>
>> 73, Pete N4ZR
>> Check out the new Reverse Beacon Network web server 
>> at<https://reversebeacon.net>.
>> For spots, please use your favorite
>> "retail" DX cluster.
>>
>> On 12/4/2022 12:05 PM, w6rgs wrote:
>>> Hi Pete. Have you considered using a *tiny *amount of Loctite 222
>>> (purple) low strength on a small section of the threads?
>>> Bill W6RGS
>
> Not on the threads, but on the nut and either the back side cable, or, 
> more commonly, the remaining exposed threads or the flange or chassis.
> It doesn't take much to prevent vibration and/or thermal cycling from 
> loosening the nut. A little blob is all it takes.
>
>
>
>
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