[TowerTalk] Subject: coax and leaks

[john at kk9a.com]

I believe Ignacy was referring coax RF leakage, not water ingress.

John


Steve Davis K1PEK wrote:

Ignacy,

You definitely do not want any water, or moisture, to leak into any coax
cable, even if it just effects the outer shield(s), and thus likely the
connector as well.  This is why some connectors have water seals in them.
But regardless of seals, for outdoor installations, it   is always a
procedure by commercial and military to seal over the coax and up and over
the connector, with adequate sealing material, that is also UV resistant.
Or, if using one of the many sealing materials, if not UV resistant, then
with UV resistant tape over it.

If you search the archives here, you will likely find a lot of
recommendations for connector sealing material and UV resistant tape.

Regards,  Steve  K1PEK   DAVIS  RF Co.        Davis Rope and Cable


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Message: 2
Date: Mon, 2 May 2022 10:44:20 -0400
From: Ignacy Misztal <no9e at arrl.net>
To: "tower and HF Antenna Construction Topics."
        <towertalk at contesting.com>


How important is cable quality to avoid leaks? Some cables have more
braiding and some less. Some have an aluminum foil and some don't. If a
cable checks well for loss and impedance, is it likely to be good enough?

So far, all detectable leaks at my station were due to loose connectors not
cables. But  I am planning SO2R and then even low level leaks may be
noticeable.

Ignacy NO9E