Good day everyone!
I'm doing an outdoor project that will be subject to the elements and a lot of vibration. I'm wondering if anyone has experienced sma wires that have become lose and unscrewed in the field? I'm worried since they will not be checked on regularly, only sparingly. So
I'm somehwat concerned that they might unscrew in time. So I was wondering if there is any way to re enforce the seal. I was told that there is some sort of epoxy that you can put to seal the connector, I've never used it before. Any idea about that? and that if it's ok to use it if the connection is outside.
You can get that at your local electronics/hardware shop. Just ask if its safe to use on the metal that your connectors have, and dont use it on the actual conductor, just the sides.
Yop may have solved this now, but I was looking at something similar recently. Would a push-pull SMA be less inclined to vibrate off in your application?
I must admit I havent personally tried these, but I understand that a deliberate pull on the collar is needed to disengage the connectors.
We have a product training module here too :
As for outdoor performance, I dont believe this would solve that part of your challenge - could you think about a cover or boot maybe?
Why not use an aerobic thread locker from Loctite and look at the SMA connector manufacturer' specs about installation torque maximums and tighthen it a tad under the spec.
You probably don't want to use an adhesive on the SMA connector. The threaded portion is the shield for the coax cable. Dirt, grime - or adhesive - on the threads effects the performance of the system. You may be able to use an electrically conductive adhesive or epoxy to help strengthen the connection, but I'm not sure how well that would work. If it were me, I'd tighten the SMA connector as per the specs for the connector, then I'd slip a length of heat shrink tubing over the mated connection and shrink it in place. That would give it some added protection from the weather and keep the connector from unscrewing due to vibration or other factors.