RG-17 has a nasty habit of the center conductor shrinking and
withdrawing the center pin
from the connector. Drove us nuts trying to troubleshoot a repeater
problem a few years
ago.
Our base electronics shop canned all the RG-17 and replaced it with
Andrews Heliax and
solved many problems. Of course it is easy when Uncle Sam is paying for
those $$$$$
connectors!
Hardline seems to be showing up at hamfests and then there is always the
old standby -
ex CATV hardline. 75 ohm, but there are ways around that.
73 de Tom/W4OKW
Steve Katz wrote:
>
> Hi Jerry,
>
> I don't know anyplace in eastern PA, but if I lived there, I'll bet I'd find
> one!
>
> Here in southern California, my usual source is Apex Electronics, 8909 San
> Fernando Road, Sun Valley, CA (818) 767-7202. They usually have miles of
> it, still spooled, often with government contract tags still attached.
>
> Since 1000' of RG17A/U weighs about half a ton, it is expensive to ship.
> When I lived back east, I always had a more "local" source of such items,
> but that was a very long time ago. I'd probably do a search (Yellow Pages,
> etc) on "military surplus" and "military surplus electronics," "military
> surplus wire and cable," etc. to determine who the local sources are.
>
> Also, if you live near any military depots, they usually have auctions
> annually or so to dispose of stuff they don't need. I've attended such
> auctions at Picatinny Arsenal in NJ and NWCC in Mechanicsburg, PA years ago
> and the deals are absolutely amazing. One I remember is picking up a
> 0-15Vdc, 0-100A regulated power supply (linear, and weighed about 200 lbs)
> for $50 in brand new condx. I couldn't lift it, so they helped me with a
> pallet jack to get it into my station wagon...
>
> WB2WIK/6
>
> "If everything seems under control, you're just not going fast enough." -
> Mario Andretti
>
> > -----Original Message-----
> > From: Jerry Keller [SMTP:k3bz@arrl.net]
> > Sent: Tuesday, December 17, 2002 9:10 AM
> > To: Steve Katz; 'Tom'; towertalk@contesting.com
> > Subject: RE: [Towertalk] Coax
> >
> > Steve... could you refer me to a source for that military RG-17A/U? I'm in
> > eastern PA. Jerry K3BZ
> >
> > -----Original Message-----
> > From: towertalk-admin@contesting.com
> > [mailto:towertalk-admin@contesting.com]On Behalf Of Steve Katz
> > Sent: Tuesday, December 17, 2002 10:40 AM
> > To: 'Tom'; towertalk@contesting.com
> > Subject: RE: [Towertalk] Coax
> >
> >
> >
> >
> >
> > > I am getting ready to replace some 10 year old coax and was wondering
> > > what the coax, not hardline, of choice is for HF now. It will be
> > feeding
> > > a 2 element
> > > 5 band cubical quad with a capability of 1500 watts.
> > >
> > [Steve Katz] You didn't say how long that cable was going to be, or
> > what is supporting the quad. The best choices for transmission line
> > usually
> > take into account the frequency of operation, line length and operating
> > environment, e.g., fixed or crank-up tower; if any of the line will be
> > buried; if any of the line will be inaccessible for service; etc.
> > Example:
> > For longer runs, my first choice is RG17A/U since it's very strong, very
> > low
> > loss and extremely easy to work with in all aspects except its rather
> > enormous weight. So, I don't use it on crank-ups (too heavy), but for a
> > fixed, guyed tower it's pretty perfect, not to mention readily available
> > for
> > a fraction of what the military pays for it. WB2WIK/6
> >
> >
> >
> >
> > > --
> > > 73,
> > >
> > > Tom mailto:trobertson@elp.rr.com
> > > KQ5S
> > >
> > >
> > > _______________________________________________
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> > See http://www.mscomputer.com
> >
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> > Towertalk@contesting.com
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> >
> _______________________________________________
> AN Wireless Self Supporting Towers at discounted prices,
> See http://www.mscomputer.com
>
> Wireless Weather Stations now $349.95. Call Toll Free,
> 888-333-9041 for additional information.
> _______________________________________________
> Towertalk mailing list
> Towertalk@contesting.com
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