Resetting the boards may not do, but resetting the chips that are in sockets probably will, based on my two 5370s
Didier KO4BB "Mark C. Stephens" <[email protected]> wrote: >It is as you said Bob, I plugged the 5370b in and It flashed a zero >then the display and front panel are blank. > >It has some other equipment in service on top of it so when I get a >chance for some downtime, I'll pull it out and reseat the boards. > > >Wish me luck! > > >mark > >-----Original Message----- >From: [email protected] [mailto:[email protected]] On >Behalf Of Bob Camp >Sent: Friday, 3 May 2013 11:42 AM >To: Discussion of precise time and frequency measurement >Subject: Re: [time-nuts] Measuring Phase diference between different >GPSDO > >Hi > >FIrst step is to fire up the 5370B counter and see if it works. If >there's a problem re-seat all the boards and see if that fixes it. >Simple way to check it is to let it count it's own reference. > >Once you have that working, then yes, measuring time between PPS >outputs is the way to go. > >------- > >Assuming it is beyond help, then the PicTic counter board is a >reasonable alternative. It will also let you measure between PPS's very >accurately. > >Both approaches are far more accurate than you will need for checking >conventional OCXO based GPSDO's > >Bob > > >On May 2, 2013, at 9:33 PM, Mark C. Stephens <[email protected]> >wrote: > >> I'd like to perform some comparison between a known good GPSDO and >some newcomers. >> I want to adjust the crystal turning point as my new GPSDO tend to >wander all over the place. >> I see some of you are using the hp 3575A to do this. >> >> Unfortunately, they are a little out of my price range at the moment. >> >> What I do have is a an ancient hp 8407a with both 8412a and b Phase >magnitude display and a 8413a phase/gain indicator. >> Is there any way they are usable to achieve the desired measurement? >> >> A also have a hp 5370b timer. I am not sure if it still works, but >anyway, would measuring the PPS be an easier option? >> >> I also hear mention of a PICTIC, what is that? >> >> >> Many thanks, >> Mark >> _______________________________________________ >> 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. -- Sent from my Motorola Droid Razr 4G LTE wireless tracker while I do other things. _______________________________________________ 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.
