I have this set up in my radio room with ham radio equipment and my thunderbolt. I got the same size battery as is in my truck so if that fails, I have a drop-in replacement.
There is a company in the USA that manufactures a product called BatteryTender - excellent float charger and maintainer. Costco sells them for $40 http://www.costco.com/Battery-Tender-Power-Plus-3-Amp-Charger.product.100241 973.html Dave > -----Original Message----- > From: time-nuts [mailto:[email protected]] On Behalf > Of Jeremy Nichols > Sent: Thursday, July 07, 2016 18:12 > To: Bob Stewart; Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] The home time-lab > > 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 <[email protected]> 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 -- [email protected] <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 -- [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.
