Then you need a stable clock as a reference, OK, but the first move is towards the smallest one-shot resolution. It is the same as your multimeter: it is useless to have 6 1/2 digits resolution and a voltage reference that wipens out the last 2 digits. The HP5345A has a resolution of 10E-10 (page 2 of the datasheet) so it is not the best available for precision timing measurements.
On Tue, Oct 2, 2012 at 2:40 PM, Azelio Boriani <[email protected]>wrote: > Searchin for the best clock characterization gear, the first parameter is > the ability to sense the smallest time movement beetween clock edges. When > you buy your top multimeter, you first decide about the resolution: 6 1/2 > digits (for example) is better than 5 1/2. Here it is the same: the > one-shot time interval resolution is the key parameter. > > > On Tue, Oct 2, 2012 at 2:11 PM, Geoff Blake <[email protected]> wrote: > >> Whilst considering the best settings for ADEV measurements, could I >> ask for views regarding the venerable HP 5345A counter/timer? I like >> this counter, particularly regarding its ability to operate up to >> 40GHz - with a suitable plug-in of course, and that I have two of >> them! >> >> Thanks Geoff >> >> _______________________________________________ >> 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.
