> 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 > To be more precise:
5370A using internal reference - ECL gate oscillator. Input signal connected to START BNC. Zin = 50 ohm START and STOP channels both connected to START BNC. 10,000 samples Frequency Amplitude Source +TI jitter -+TI jitter 10MHz 1Vrms GPS locked OCXO 44ps 24ps 10MHz 0.7Vrms 5370A 10MHz output 14ps 14ps 5MHz 1Vrms FTS1200 40ps 41ps 5MHz 0.5Vrms FTS1200 57ps 52ps Bruce _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
