> John > > My 5370A currently has the following characteristics: > With the EXT 10MHz connected to the input jitter is 15ps. > With an FTS1200 5MHz input signal jitter is 46ps. > With an external GPS locked 10MHz input signal jitter is 45ps. > > This illustrates the danger in believing the jitter measured with a > coherent input signal. > > Bruce
Thanks much for the measurements. I agree with the conclusions. There have been several threads recently where people use a counters' reference output as one of the inputs. I'm not sure where the idea comes from, but it seems ill advised to me. /tvb _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
