Hello Time-Nuts, I have been having fun playing with the DMTD, but have a question regarding data collection.
Obviously with a 10Hz offset oscillator I am feeding square waves with a 100ms period to the START and STOP of the 5370B. The trigger lights are happily blinking away at 10Hz. However, I seem to have two different operating modes depending on the difference between the START and STOP signals. If the difference is small, no problem. I get 10 samples per second when TimeLab is run (TimeLab puts the 5370B in Talk Only mode, I believe). When the difference between START and STOP approaches something larger than 50ms I start getting only 5 samples per second. I believe this is because the re-arm time misses the next START edge, such that I get every other sample. This definitely gives bad data for TimeLab. So, the question is, how do I straighten out this mess? For long-term measurements with two oscillators that have any kind offset/aging difference you are toast. I have thought about maybe adding a 10Hz EXT ARM signal, but if it is not at exactly the 10Hz difference frequency that could create problems too (and it is a pain in the butt). I would like to use the 5370B, but maybe it's time to switch to the TICC. Any suggestions would be appreciated. Thanks, Skip Withrow _______________________________________________ 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.
