Re: Coax as data cable

["Jim" <alarminex@xxxxxxx>]

Matt Ion wrote:
> Frank Olson wrote:
> > Don wrote:
> >
> >> I'm always looking for better ways to do things.  What are the
> >> preferred BNC connectors and tool to attach them?
> >> must I solder or will crimp work?
> >> I have used crimp ons from ADI but they don't seem to stay on as well
> >> as the twistys.
> >>
> >>
> >
> >
> > I'm on the "wet coast".  Solder works best for most anything involving
> > "connections".  That being said I can't recall a problem involving a
> > "twist on" connector.  Heaters fail resulting in condensation problems
> > and then there's the "tire iron" service call.  That's where the perp
> > beats the crap out of the camera with a tire iron (or similar blunt
> > object) until service is required.  :-)
>
> I normally use the three-piece crimp-ons, but I've also used twist-ons in a
> pinch, and seen them in a lot of installations.  I've had a lot more problems
> with the two-piece crimps, mostly because the shield crimps always seem to be
> significantly larger than the cable I use, and I just can't get a tight fit on them.
>
> In my experience, the only time I've ever seen problems with twist-ons is when
> they're installed poorly - insulation not stripped back enough, or stripped back
> too much so the threads don't bite into it, etc. Of course, any connector type
> will give you problems if you do a half-assed job of it.
>
> My only real problem with twist-ons is the pain in the wrists after doing any
> more than a half-dozen or so of them.
>
> BTW, for those connections exposed to the elements, I find it handy to carry a
> tube of dielectric grease, the kind sold in automotive stores for coating
> battery posts and wiring harness connections under the hood.  Goop some of that
> in there, then if possible, wrap it up tight in PVC tape (the stretchier, the
> better, to you can get a good tight form-fit).

While your at that automotive store, see if they have any spark plug
rubber boots.
Some that are used on foriegn cars are just big enough to slip over the
coax and the
F connector and with some of that silicon grease inside of it, it'll
protect your out door connections better than tape. You can also get
the rubber boots from various
connector Mfg's.

>
> Not much you can do about the "tire iron" calls short of installing Extreme CCTV
> domes...