Fw: [TowerTalk] PL258s and Double Males are OK!

Robert Shohet kq2m@mags.net
Mon, 25 Sep 2000 16:37:59 -0400



> Hi Gerald,
>
> Tnx for responding!  Sounds pretty complicated to me and I am somewhat
> confused by your referencing 1/2" hardline
> when I am trying to use 3/4" hardline.  Maybe this was part of a previous
> post that you excerpted?
>
> At this point I have pretty much decided to use pl258 's on the end of the
> hardline and double males where necessary.  Not what I hoped for but maybe
> the easiest solution.  Tnx again for your help.
>
> 73
>
> Bob KQ2M
>
> ----- Original Message -----
> From: <TexasRF@aol.com>
> To: <towertalk@contesting.com>; <kq2m@mags.net>
> Sent: Monday, September 25, 2000 9:06 AM
> Subject: Re: [TowerTalk] PL258s and Double Males are OK!
>
>
> >
> > Hi again Bob. If the hardline o.d. is .75" you can attach a PL259 using
a
> > 3/4" to 1/2" copper pipe reducer from Home Depot/Lowes. The i.d. of the
> pipe
> > reducer is too large so you need a short length of 3/4" copper pipe
(same
> > source) to act as a shim inside the reducer. You will need to hacksaw
> several
> > slits in the reducer/shim so you can install a hose clamp around it and
> > squeeze it down to a tight fit on the cable o.d..
> >
> > I suggest you solder the shim to the reducer and tin the inside if the
> whole
> > thing to help keep the copper away from the aluminum coax shield. The
> small
> > end of the reducer fits the o.d. of a PL259 almost exactly and can be
> > soldered directly to the PL259 before installing on the hardline. Be
sure
> to
> > put the PL259 outer shell on before soldering as you can't do it later!
> >
> > The center conductor can be adapted in a number of ways. A short piece
of
> > brass from a brass bolt can be drilled on one end to fit the center
> conductor
> > and the other end to fit a #10 or #12 wire or piece of RG8 center
> conductor
> > etc to connect to the PL259 center pin. Home depot has brass fittings
that
> > are threaded. One of these can be drilled to fit the center conductor.
> Hobby
> > brass tubing can be stacked to make reducers for the center conductor.
Use
> > what you can find or have.
> >
> > When you install the connector solder the center pin/reducer to the
> hardline
> > first. Put some No-Alox or other corrosion inhibiter inside the big end
of
> > the large reducer to help keep a good joint. Push the big reducer over
the
> > hardline shield and secure with a good quality hose clamp. Solder the
> PL259
> > center conductor. Put some good weather sealer over the connection when
> > installed as as you know water and aluminum can cause some big problems.
> >
> > I have used variations of this scheme on 1/2" hardline for years with no
> > problems.
> >
> > Hope this helps.
> >
> > 73 de Gerald, K5GW
> >
> > --
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> > Problems:                 owner-towertalk@contesting.com
> >
> >
> >
>


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