[time-nuts] Subject change - sources for coax cable and other RF stuff - was RG6 or LMR400 for GPS Antenna

[William H. Fite]

Antenna Farm is also good. They'll terminate any length for you at
reasonable cost.

http://www.theantennafarm.com/

No financial interest, just a satisfied customer.

Bill



On Thursday, April 21, 2016, DaveH <info at blackmountainforge.com> wrote:

> If you are looking at getting some LMR400, Ham Radio Outlet has a branch in
> Portland and they are really nice people to deal with.
>
> http://www.hamradio.com/
>
> I have zero financial interest outside of being a very happy customer.
>
> The Wire Man is also very very good.
>
> http://thewireman.com/index.html
>
>
> Dave
>
>
> > -----Original Message-----
> > From: time-nuts [mailto:time-nuts-bounces at febo.com <javascript:;>] On
> Behalf
> > Of Ryan Stasel
> > Sent: Wednesday, April 20, 2016 18:03
> > To: Discussion of precise time and frequency measurement
> > Subject: Re: [time-nuts] RG6 or LMR400 for GPS Antenna
> > (Symmetricom 58532A and T-bolt)
> >
> > Bob/Paul,
> >
> > Thanks. And there's the rub... Who knows what the specs are
> > on "generic" RG6 QS. I'll see what my seller wants for their
> > LMR400, but otherwise yeah, RG6 is just easier. I have both
> > compression and crimp connectors for it, including some RG6
> > N-connectors (yeah, they're probably for LMR300, but they work).
> >
> > Other question: any tips for the exterior N connection? I can
> > "weatherproof" the actual cable-connector crimp, but I'm
> > curious if anyone bothers to "lube" the N connector to keep
> > moisture from otherwise seizing it up.
> >
> > Thanks!
> >
> > Ryan Stasel
> > IT Operations Manager, SOJC
> > University of Oregon
> >
> > Sent from my iPhone
> >
> > > On Apr 20, 2016, at 17:00, Bob Camp <kb8tq at n1k.org <javascript:;>>
> wrote:
> > >
> > > Hi
> > >
> > > RG-6 Quad Shield should be fine as long as it's meeting the
> > published specs. The advantage of LRM-400 is that you likely
> > *know* where it came from and what the specs are.
> > >
> > > If you decide to split the antenna between GPSDO's, a
> > powered splitter is a really good idea. Each time you split
> > another 2 ways, you loose 3 db. Get at least a 4 way splitter ..
> > >
> > > Bob
> > >
> > >> On Apr 20, 2016, at 4:41 PM, Ryan Stasel
> > <rstasel at uoregon.edu <javascript:;>> wrote:
> > >>
> > >> All,
> > >>
> > >> I'm going to be installing a "permanent" antenna at home,
> > and will need a run of about 100ft to get from my
> > workstation, to the mast I'll be mounting the antenna on
> > (Symmetricom 58532A). I've seen some indication that both the
> > antenna and the Trimble Thunderbolt won't have any issues
> > with running over 75ohm cable, but thought I'd ask the
> > "experts" whether I'd be better off with some RG6
> > Quad-shield, or LMR400 (I've got a local source that doesn't
> > know what LMR400 is, or what it's worth)?
> > >>
> > >> Obviously I'd prefer to run and crimp RG6, but if I'd be
> > better off with LMR400, I'd rather run that now than go back
> > into the crawlspace again. =)
> > >>
> > >> Also, if it helps, I'll probably have a Symmetricom/HP
> > 58516A at/near the T-bolt so I can experiment with other
> > GPS(DO)s as well (especially one of the JRMiller boards I
> > bought and built (but never finished) ages ago). Which brings
> > the question, will the T-bolt provide the oomph needed to
> > power that splitter and the antenna over that length of cable?
> > >>
> > >> Thanks!
> > >>
> > >> -Ryan Stasel
> > >>
> > >>
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