I figured, what the heck, and just used a BNC T and it’s working.
> On Nov 17, 2017, at 12:20 PM, Magnus Danielson <[email protected]> wrote: > > Hi, > > The reason I mention sharing antenna is that it takes out the difference that > is natural from having different antennas and the difference in multipath. > > Sharing antenna has its own set of problems, so a suitable antenna splitter > was assumed. Effectively you need to bypass DC to power the antenna, you need > to amplify the signal to compensate for the loss due to the splitter, and it > needs to look like an antenna to the GPS receiver, so the antenna alarm does > not goes off. > > Cheers, > Magnus > > On 11/17/2017 09:01 PM, Jerry Hancock wrote: >> Thanks, understand completely. >> You mention “sharing an antenna”. Is there a problem with connecting the >> same antenna to two units? I am referring to my REF0/REF1 pair. >> Thanks >>> On Nov 17, 2017, at 11:39 AM, Magnus Danielson <[email protected]> >>> wrote: >>> >>> Hi, >>> >>> First of all, the receiver varies around some average phase. >>> The average of two receivers may not be the same, even if sharing antenna. >>> Their average can be offset from "absolute phase" because of offsets in the >>> receiver, antenna cables and antenna. >>> >>> If you are not to careful, a GPSDO will do nicely for many applications. >>> The more you care, the more hassle. >>> >>> Oh, and two GPSDOs next to each other can have significant common mode >>> disturbance, so you can't really evaluate a GPSDO by measuring up to >>> another GPSDO. >>> >>> Cheers, >>> Magnus >>> >>> On 11/17/2017 08:05 PM, Jerry Hancock wrote: >>>> Granted I expect someone on this list to reply with something that makes >>>> me feel stupid, if you have two GPSDO units running side by side, should >>>> the phase delta on the 10Mhz output be zero (ideally)? Is there an >>>> absolute phase standard kept between GPSDO units as all it would take is >>>> one extra inverter in the chain to flip the phase, no? >>>> Thanks >>>> Jerry >>>> _______________________________________________ >>>> 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.
