-------- In message <[email protected]>, Bob kb8tq writes:
>Once you do replace the TCXO, you then are very dependent on a sawtooth >correction >to run your GPSDO. The PPS becomes one big long hanging bridge and thus is not >useful. Well... If you do not have the sawtooth, what you can do instead is try to steer your external clock to give you *maximum* jitter on the PPS. That situation arises when you get the GPS to "waffle" between which two clock-cycles of the external clock it should put the PPS. It is incredibly dependent on the GPS receiver internals, and it is very hard to keep stable, but you _can_ do it. I know, because I did :-) -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 [email protected] | 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 -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
