[TowerTalk] Hardline for stubs?

[Robert Shohet]

   Hi Dave,
>
> Fortunately I have plenty of it and plenty of other additional cable for a
> VHF run.
>
> BTW your website is GREAT! and I downloaded a bunch of stuff from it
onstubs
> and other things.
> Many thanks for making it available to all of us!
>
>73

Bob KQ2M

> ----- Original Message -----
> From: David Robbins <k1ttt@berkshire.net>
> To: Robert Shohet <kq2m@mags.net>
> Sent: Monday, September 18, 2000 5:13 PM
> Subject: Re: [TowerTalk] Hardline for stubs?
>
>
> > that is the low loss version normally used for long runs.  the velocity
> factor
> > will be different from the foam and you shouldn't coil it as tightly but
> > otherwise it will work fine... though if you have enough it would be
> better to
> > save for uhf use and use some cheaper stuff for stubs.
> >
> >
> > Robert Shohet wrote:
> > >
> > > I have learned so much in the past seven hours thanks to everyone!  As
I
> was
> > > preparing to start making stubs (to trap harmonics among other things)
> and I
> > > opened up the 3/4" CATV hardline, I noticed that under the PVC coating
> and
> > > the thin top layer of aluminum, not only was the dielectric not foam,
> but
> > > all there was was a little plastic "plug" inside about 1/4" long
> followed by
> > > about 1" of space (inside the hardline) followed by another 1/4" plug
> > > followed by another 1" of air and so on.  This is apparently what the
> local
> > > cable company is using.
> > >
> > > With all this "air" inside and very little dielectric, is this what I
> want
> > > to be using for antenna transmission lines and stubs?  The center
> conductor
> > > is quite thick but I am pretty unsure about all this air where I would
> think
> > > foam or something else should be.
> > >
> > > Your thoughts please?
> > >
> > > Tnx & 73
> > >
> > > Bob KQ2M
> > >
> > > --
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> >
> > --
> > David Robbins K1TTT
> > e-mail: mailto://k1ttt@berkshire.net
> > web: http://www.berkshire.net/~robbins/k1ttt.html or
http://www.k1ttt.net
> > AR-Cluster node: 145.69MHz or telnet://k1ttt.net
> >
> >
>


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