"Danger Wil Robinson...." There you go good old time nuttery. Pete its bad to start to compare things. Because then you have questions. That leads to the need for a better reference. Around and around it goes. TCXO's for my 2 cents really tend to introduce variables. Yes better then a free standing crystal in general. Some of the HPs actually used a true free standing crystal. 5335 and 5328 as I recall. By locking all of the counters together you at least limitthat variable to the source. Given the cost of GPSDOs that would give you a pretty good arrangement then. Have fun Paul WB8TSL
On Thu, Nov 3, 2016 at 8:20 AM, Peter Reilley <preilley_...@comcast.net> wrote: > I am the proverbial man with too many clocks and I don't know what time it > is. > To correct this situation I have decided to calibrate everything. > > I have a HP 5370B, a HP 6370A, and a HP 5328A all with the TCXO option. > I also > have some TCXO modules. I figured that I would calibrate them against my > Trimble > Resolution T GPS receiver. > > I put the 1 PPS signal in one channel of my scope and one of the 10 MHz > TCXO > signals in the other channel and look at the phase relationship. The > TCXO's are > already close enough that I should not be out by more than a fraction of a > waveform. > I understand that I have to deal with the 1 PPS without sawtooth > correction. > > I expected to see the 10 MHz signal bounce around but not move more than > 1/2 > of a wave length. Instead I see the 10 MHz waveform appear steady for a > few seconds > then jump a significant portion of the wave. The jump is too much to be > confident > that I have not slipped one cycle. > > Can I do what I am trying to do or am I missing something? > > Pete. > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/m > ailman/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.
