Hi Dana, The antennas were in the window, top of the lower pane of a two pane window. Certainly a better location that the antenna sitting on the desk.
There were several other units that showed similar behaviors. I suppose it’s possible that there was interference. There were 7 antennas in 3 different groups—2 groups of 3 antennas separated by 4 inches, and 1 antenna off by itself. However, all showed an increased “closeness” in tracking when moving to the common antenna. It’s not exactly a controlled test, but surprising nonetheless. Just out of curiosity, I may do a more controlled comparison once I’m done with the current testing. Denny > On Apr 29, 2019, at 18:18, Dana Whitlow <[email protected]> wrote: > > Denny, > > That is certainly a large difference. But I'm not clear on one point that > could > easily be very important: > > Were the two antennas for the separate antenna test indoors, or on the roof? > If indoor, I kind of suspect that the difference might mostly be attributed > to the > change in antenna locations more than anything else. If this is what's > going on, > you've made very strong case for outdoor antennas for GPS timing. > > Also, it's possible that the two receivers with their antennas in such close > proximity might have been interfering with each other. > > Dana > > > On Mon, Apr 29, 2019 at 8:07 PM Denny Page via time-nuts < > [email protected]> wrote: > >> I don’t seem to be able to attach the pics to the emails correctly to >> allow the mailing list software to process them. Rather than bombard >> everyone with any more attempts, I put them up on Dropbox. >> >> You can find the pics here: >> https://www.dropbox.com/sh/fbbfuydqac5qqql/AAADkwrcVL8u5nkHvi8ecMe3a >> >> Thank you to Tom and John for trying to help! >> >> Denny >> >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com >> and follow the instructions there. >> > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
