Mike Monett wrote: > > So, assuming my known timebase is "bang on", I know the frequency > > of the unknown 10 MHz source to an accuracy of roughly 3e-10 or 3 > > parts in 10 billion. > > > To get a more precise measurement of the frequency difference > > between the two 10 MHz clocks, I supply the known 10 MHz clock to > > the Channel A input of an HP 3575A Gain-Phase meter and the > > unknown 10 MHz clock to the channel B input of the Gain-Phase > > meter. > > Another very difficult instrument to find any data on. The best I > could find shows it has an accuracy of ± 0.5 degree and resolution > of 0.1 degree. > Try the agilent website for the manuals not yet readily available For directions visit: www.hparchive.com <http://www.hparchive.com>
There is a 3575A manual for downloading at the Agilent ftp link. If you read it you will find that the specified error with 10MHz inputs is much larger: 10-20 degrees or so. Bruce _______________________________________________ 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.
