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: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] 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 <ma...@non-stop.com.au> 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 -- time-nuts@febo.com To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ 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. _______________________________________________ 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.
