Jackson Labs PHASE STATION 53100A, User Manual

Page: 41 / 225

PhaseStation 53100A User’s Manual V1.04 25-Apr-2022 41
Making Measurements
Three views of the same PhaseStation
53100A measurement appear at left,
revealing the performance secrets of
some of the industry’s highest-quality
crystal oscillators .
The Allan Deviation plot displays
frequency stability at intervals from
milliseconds to days, while the Phase
Noise plot renders the signal’s spectral
signature at offsets ranging from
0.001 Hz to 1 MHz. In this example,
dual references help the PhaseStation’s
noise measurement floor approach
-150 dBc/Hz at 1 Hz from the carrier.
Meanwhile, a mixture of short-term
and long-term stability trends can be
examined in the Frequency Difference
display. The 53100A’s frequency-count
chart offers over 13 digits per second
of
usable precision at “gate times”
from 0.1 second to 3000 seconds.