I'd vote for N, but just because we have always used N connectors and LMR-400 and have it in the warehouse. Seems like overkill to pull LMR-400 for GPS and I'm sure there is an equivalent EZ connector and smaller cable out there but I wouldn't want to tool and stock up for it to just put up one GPS antenna.
On Wed, Mar 28, 2018 at 3:02 PM, Forrest Christian (List Account) < [email protected]> wrote: > Every external 'commercial' GPS antenna that I've seen has a N connector > on the bottom of it. You can buy 'cheap chinese outdoor' GPS antennas > with a long lead and a SMA connector on the end as well....but I'm not sure > I'd trust those. > > On the equipment end, there doesn't seem to be a standard. I have gear > with SMA, N, BNC and even F connectors for the GPS antenna. The cambium > CMM's (CMM4 and earlier) seem to use BNC's. The LMG equipment uses N > connectors. One of my two GPSDO's uses a F connector, the other uses a > SMA. I have two symmetricam GPS distribution amplifiers which both have > all N connectors. I have a GPS re-radiator amplifier which uses SMA > connectors. > > I think it's safe to expect the outside antenna to have a N connector on > it, since you probably don't want the cheap chinese antennas since they > seem to fail on a fairly regular basis (poor quality electronics inside > them). What you use on the inside probably can just be decided based on > your mechanicals, not as per any standard. > > On Wed, Mar 28, 2018 at 7:32 AM, Chuck McCown <[email protected]> wrote: > >> What does the CMM line of products use for an antenna? >> >> *From:* Jaime Solorza >> *Sent:* Tuesday, March 27, 2018 7:59 PM >> *To:* Animal Farm >> *Subject:* Re: [AFMUG] GPS antennas >> >> I have done N to SMA adapter on two jobs where antenna had N connectors. >> But most of the GPS antennas install in vehicle for tracking or 4G LTE >> mobile NVRs have been SMA. >> >> Jaime Solorza >> >> On Tue, Mar 27, 2018, 7:54 PM Chuck McCown <[email protected]> wrote: >> >>> But if you have to install an outdoor GPS antenna, are you OK with >>> terminating an SMA on a cable for that? Like RG58 or LMR195? >>> >>> *From:* Jaime Solorza >>> *Sent:* Tuesday, March 27, 2018 7:49 PM >>> *To:* Animal Farm >>> *Subject:* Re: [AFMUG] GPS antennas >>> >>> SMA is what I use on GPS and even on GPS repeaters Installed in several >>> manufacturing plants across border. >>> >>> Jaime Solorza >>> >>> On Tue, Mar 27, 2018, 7:39 PM Chuck McCown <[email protected]> wrote: >>> >>>> What kind of GPS antennas does everyone prefer for outdoor mounting? >>>> What kind of RF connectors are prefered? >>>> >>>> I have a BITS clock completed (sans framing, will get back to that >>>> someday). It is rack mounted. >>>> But we have to cable it to an outside antenna. So, the installers will >>>> most likely have to terminate the cable. >>>> BNC, N, F, SMA, Mini UHF, UHF, lotsa options. >>>> >>>> What does the CMM family use for antennas and connectors? >>>> >>> > > > -- > *Forrest Christian* *CEO**, PacketFlux Technologies, Inc.* > Tel: 406-449-3345 | Address: 3577 Countryside Road, Helena, MT 59602 > <https://maps.google.com/?q=3577+Countryside+Road,+Helena,+MT+59602&entry=gmail&source=g> > [email protected] | http://www.packetflux.com > <http://www.linkedin.com/in/fwchristian> <http://facebook.com/packetflux> > <http://twitter.com/@packetflux> > > -- Carl Peterson *PORT NETWORKS* 401 E Pratt St, Ste 2553 Baltimore, MD 21202 (410) 637-3707
