Oops, I missed a digit on that last email. it should be 10,000 s average for 100 ps resolution.
Joe Gray W5JG On Wed, Feb 4, 2015 at 1:58 PM, Joseph Gray <[email protected]> wrote: > Sorry for the simple questions. Old hands can simply ignore this > message if it bothers you. > > I have an HP 5328A that I have pieced together from broken units. As > soon as I make a ribbon cable for the GPIB card, I want to use it for > T.I. measurements. I know it isn't nearly as good as a 5370, but it is > what I have at the moment. > > The manual states that the Universal module adds dithering to the > multiplied 100 MHz internal reference. If I use a GPSDO as an external > reference, will this multiplying/dithering allow me to use the same > GPSDO (divided down to PPS) on either the START or STOP inputs? If > not, then how about using a different GPSDO as the external reference? > Or even an FE5680A rubidium? > > If I read the specs correctly, using T.I. averaging on the 5328A, a > 1000 s average should get me 100 ps resolution? With this particular > instrument, what is the best, useful resolution I can expect? > > Joe Gray > W5JG _______________________________________________ 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.
