docdai...@gmail.com said: > I guess what I am saying is if I discipline the counter with 10MHz and then > measure the same 10MHz. Just making sure we are on the same page.
The input signal will be at a fixed offset from the reference clock. That offset will depend on cable lengths. If that setup gives a bad result, you know something doesn't work well. If it gives a good result, I don't think you can assume it will work well with other input signals. You might try using the GPSDO as the reference and measuring a typical crystal oscillator package. They are usually quite stable short term. Long term they track temperature. Beware, some low cost oscillator packages have internal DDS. Check the specs for jitter. [I think the idea is to ship unprogrammed packages to distributors where they can be programmed to order and shipped with low turn-around-time.] -- These are my opinions. I hate spam. _______________________________________________ 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.
