[Elecraft] Waterproof SO-239 covers

[Nate Bargmann]

* On 2020 15 Jul 16:07 -0500, Doug Daniels wrote:
> I just built a window antenna feedthrough panel, and want some waterproof
> covers for the unused bulkhead connectors. Most of the online reviews say
> that even the ones advertised to be waterproof are in fact not waterproof.
> Anyone have a source for ones that are?

Anything you can slip on or off easily will not be water proof.  I have
used 3M rubber splicing tape to good effect over the years as it is self
vulcanizing.  Stretch it as you wrap it and it will fill the gaps.  Then
wrap it with a couple of layers of 3M Super 88 or 33+ electrical tape to
protect it from uV.

I've not tried what you're doing as I've covered splices (UHF to barrel
to UHF, etc) with this method and the connection at the feedpoint of
antennas.  I've opened them years later and everything is clean and dry.
The nice thing is that rubber will cut and peel away easier than the
butyl of Coax Seal and such.  I do use the butyl on connections for
repeaters, hard line ground kits, and such!

Link to the 3M rubber tape:

https://www.3m.com/3M/en_US/company-us/all-3m-products/~/Scotch-Rubber-Splicing-Tape-23/?N=5002385+8709319+8710676+8730567+3294318588&preselect=8710748+8744072&rt=rud


73, Nate, N0NB

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