Hi I keep an old fashion "logic probe" lying around for this sort of thing. If the light flashes, I have a signal. Much easier than a scope.
Bob -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Joseph M Gwinn Sent: Monday, February 08, 2010 12:21 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] No 1 PPS output on a Tbolt The 1PPS signal is actually quite strong. I would hook a telephone receiver or perhaps a little speaker to the 1PPS output and listen. The signal should make an audible click once per second. Joe Gwinn [email protected] wrote on 02/08/2010 12:01:46 PM: > From: > > Mark Sims <[email protected]> > > To: > > <[email protected]> > > Date: > > 02/08/2010 12:11 PM > > Subject: > > [time-nuts] No 1 PPS output on a Tbolt > > Sent by: > > [email protected] > > > Make sure that the 1 PPS output is enabled... It can be > turned off by software and that mode can be set in EEPROM. > > Also, many scopes have great difficulty showing a 10 uS pulse > at a 1 PPS rep rate. Digital scopes might not sample it in > normal display modes (envelope or glitch capture mode can > help). It can easily get lost on an analog display... > _________________________________________________________________ > Your E-mail and More On-the-Go. Get Windows Live Hotmail Free. > http://clk.atdmt.com/GBL/go/201469229/direct/01/ > _______________________________________________ > 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.
