I recommend rigging up something to operate from storage batteries for the rest, thus eliminating the power line temporarily.
Jeremy N6WFO On Thursday, July 7, 2016, Bob Stewart <b...@evoria.net> wrote: > I hope this isn't too far off topic, as this is having a big impact on my > testing. > > I decided to run an A/B test on one of my GPSDOs: comparing the phase of > the two 10MHz output channels. In the middle of the night, there was a > long series of 35ns pops in the phase data. Strangely enough, there was > nothing in the data collected directly from the unit involved. The > preceding two days we had had a number of switching transients where the > lights blinked but nothing shut down. So, putting one and one together, I > suspect that a fair percentage of the strange results I've been getting has > been power-grid related. > So, what to do? I've been looking at UPS devices, and I don't even > understand enough to waste my money on a bad one. The two big questions > seem to be "on-line" and "sine wave". Make that three: can I trust the > mfgs claims? Is there something affordable that could run a pair of 5370s > and maybe another 50W worth of DUTs for up to an hour or two and not be > prey to power-line transients? Or would it be more cost effective to > somehow monitor the power line for spikes or phase jumps and blow off tests > or cut out the offending data? From time to time we get a thread on > power-line nuts. Should I have been paying more attention? > > Bob - AE6RV > > > ----------------------------------------------------------------------------------- > GFS GPSDO list: > groups.yahoo.com/neo/groups/GFS-GPSDOs/info > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com <javascript:;> > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > -- Sent from Gmail Mobile _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.