[time-nuts] Connectors

brent evers brent.evers at gmail.com
Fri Apr 12 12:01:56 EDT 2013


BTW - 3M Scotch rubber tape is regularly used in the offshore industry to
make waterproof connections to 6000m/10,000psi.  I use it on any/all
outdoor signal (RF/Microwve antenna connectors, amphenol, etc) connectors
as well.  I cover the rubber tape with a layer of electrical tape (Super
88), and then a layer of scotchguard over that.

Scotch rubber tape comes in both a linered (23), and liner-less (130C)
version.  I far prefer the liner-less 130c.

To make sure this is time related, my two Thunderbolt antenna connectors
are also sealed this way.

Brent



On Fri, Apr 12, 2013 at 11:16 AM, Rob Kimberley <robkimberley at btinternet.com
> wrote:

> It's a very useful material, also called "Self Amalgamating Tape".
>
> Been using it for years for all sorts of outside cable work.
>
> Rob
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of Azelio Boriani
> Sent: 12 April 2013 14:00
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Connectors
>
> Sorry, not neoprene but self-sealing polyisobutyl tape, very effective for
> the outdoor antenna work**. I have recently opened a sealed connection,
> after 10 years, and the protected connector appears as new.
>
> On Fri, Apr 12, 2013 at 2:38 PM, Azelio Boriani
> <azelio.boriani at screen.it>wrote:
>
> > I use neoprene tape to make really water tight connections for all
> > type of connectors.
> >
> >
> > On Fri, Apr 12, 2013 at 1:27 PM, Bob Camp <lists at rtty.us> wrote:
> >
> >> Hi
> >>
> >> The fancy F connectors are indeed waterproof if:
> >>
> >> 1) You have the right cable
> >> 2) The cable and connector match up
> >> 3) The tool and the connector match up
> >>
> >> The auction sites are a great place to get samples of connectors and
> >> tools that apparently work with no known cable .
> >>
> >> If you are not careful about the trim on the dielectric / positioning
> >> , they can have issues above 1 or 2 GHz. Even a lot of care they
> >> don't really do the job above 5 GHz. Exactly where they drop out
> >> depends (of course) on your return loss expectations.
> >>
> >> Bob
> >>
> >> On Apr 11, 2013, at 4:21 PM, Gordon Batey <gpbatey at wildblue.net> wrote:
> >>
> >> > Greetings,
> >> >
> >> > I have used the longitudinal compression F connectors for some time
> >> > now
> >> with
> >> > several GPS units and RG-6 cable.  They certainly appear to be
> >> waterproof
> >> > and quite sturdy.  Not inexpensive but very serviceable.  I found a
> >> > kit
> >> with
> >> > the installation tool and connectors and separate connectors at
> >> > LOWES
> >> that
> >> > does a nice job.  I also found one for BNC that use the same
> >> > principle
> >> but
> >> > have not used it yet.  Gordon WA4FJC
> >> >
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