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:[email protected]] 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 <[email protected]> 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 > <[email protected]> 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 > >> > >> > >> _______________________________________________ > >> time-nuts mailing list -- [email protected] > >> To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >> and follow the instructions there. > > > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
