Or feed both oscillators into a mixer and extract the difference which will be the offset of your DUT from your standard
Content by Scott Typos by Siri > On Apr 24, 2015, at 10:36 PM, Brent Gordon <[email protected]> wrote: > > Just feed the PPS into the scope trigger on step 2. > > The low repetition rate on the PPS would make this difficult on an analog > scope; on a digital scope it is easy. You can use any sub-harmonic that is > less than or equal the counter reference frequency (10 MHz). > > Brent > >> On 4/24/2015 3:45 PM, d0ct0r wrote: >> >> >> Hello, >> >> The input: HP 5386A which I would like to calibrate, Well warmed Tremble >> Thunderbolt (1PPS only), 10 Mhz Datum OCXO (unknown accuracy), Rigol >> 1101E Oscilloscope. >> >> The goal is to calibrate counter to read the Datum OCXO. >> >> =========================== >> >> Reading the manual for 5386A, there is simple schema for calibration: >> >> 1. Connect HP 5386A 10Mhz OUTPUT to Oscilloscope >> 2. Connect Frequency Standard to Ext. Trigger on Oscilloscope >> 3. Adjust the frequency on 5386A TCXO for minimum sideways movement of >> 10 Mhz signal >> >> However, my Trimble TB 10Mhz output is currently in use. I have only >> 1PPS signal available. The HP manual do not mention what exactly >> frequency needs to be on "Frequency Standard" connected to Ext. Trigger. >> Is there any method/option I could apply to calibrate HP counter ? >> >> Thanks ! > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
