Hi Bill & Didier: I think that Richard is using the tvb divider on his 10 MHz reference to get to 1 PPS and that has a square wave output.
Have Fun, Brooke Clarke -- w/Java http://www.PRC68.com w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml http://www.precisionclock.com Bill Janssen wrote: >Didier Juges wrote: > > > >>Second thoughts about inverting the UTC 1PPS. I have read in a previous >>post that for most GPS receivers, only the leading edge of the 1PPS >>pulse is tightly controlled (and intended to be synchronous with the >>satellite signal), the falling edge is not. If this is true, we want to >>make sure we keep that edge the way it is and then invert the 1PPS from >>the DUT, if this is possible. >> >>Also, at least with my Jupiter receiver, the 1PPS is a fairly short >>pulse, not nearly 50% duty cycle, so inverting it might not give much >>improvement. >> >>Any thoughts? >> >>Didier >> >> >> >Would it be feasible to clock a flip-flop with the pulse ? that would >give a 50% duty >cycle but with one pulse per two seconds. I hate to slow the signal but >it might be feasible. > >Bill K7NOM > > >_______________________________________________ >time-nuts mailing list >[email protected] >https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > > _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
