> Tom > > The short term phase instabilities of the sound card LO that occur > during the finite interval between the zero crossing times for one > channel and the zero crossing time for the other channel can be > significant. > ...
Bruce, I'm all ears for details about the phase stability of sounds cards. But you need to define "significant" here. Give me real numbers and I'll believe it. Bear in mind that we're talking about a PC-based application with a couple of milliseconds of expected NTP time jitter, and a modest goal of measuring frequency to ppm levels even if it takes hours to achieve that level. /tvb _______________________________________________ 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.
