Hi, Luciano -- The sampling interval would be whatever rate the counter is returning readings, as usual. I usually let the acquisition driver estimate the rate, unless I know it's exactly one reading per second.
In frequency mode, the scale factor should be 1E-6. You need the program to treat the frequency readings as microhertz, to force the 1000000:1 heterodyne factor to be accounted for when the frequency readings are integrated back to phase differences. For TI readings the scale factor should also be 1E-6, and you would enter 5E6 as the input frequency. I *think* that'll make it handle phase wraps properly, but you might send me a few plots to make sure. I've never tried a DMTD with TimeLab before. -- john > -----Original Message----- > From: time-nuts-boun...@febo.com [mailto:time-nuts- > boun...@febo.com] On Behalf Of Timeok > Sent: Wednesday, December 12, 2012 5:15 AM > To: time-nuts@febo.com > Subject: [time-nuts] DMTI and Timelab setup > > Hi all, > > if I will use a dual mixer TI meter, suppose to have : > > LO 5.000.005 Hz > Ref and Ftest 5 MHz > IF= 5Hz > > how do I have to setup Timelab for acquisition? > > Sampling interval = .... > Input frequency = .... > Scale factor = .... > > Thanks all, > Luciano > timeok > > _______________________________________________ > > 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. > > -- > timeok > > _______________________________________________ > 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. _______________________________________________ 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.
