-------- In message <20180522011345.4db43406...@ip-64-139-1-69.sjc.megapath.net>, Hal Mu rray writes: > >hol...@hotmail.com said: >> One thing to look out for when messing with sawtooth messages is the >> question of does the message come out before or after the PPS pulse... good >> look finding the answer in the receiver documentation... > >Has anybody asked the manufacturers?
It is trivial to measure with a HP5370: Capture a series where you measure the 1PPS against a good 10MHz and record the serial datastream. Then offline apply the negative sawtooth and plot the result. If you get ugly spikes at the turning points of the "hanging bridges" you're doing it wrong. For the UT Oncore etc. it is predictive of the next 1PPS flank. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ 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.
