Anritsu MS2665C - Frequency Readout Accuracy

SECTION 6 PERFORMANCE TESTS
6-9
Frequency readout accuracy
Add the known frequency which serves as the center frequency reference to the spectrum analyzer as shown in
the figure below and set CF (same value as the known reference frequency) and SPAN. At this time, check that
the difference between the reading of the marker readout frequency (thick arrow in the figure) of the center
frequency peak point, and the CF set value is ≤specifications.
As shown in the figure, the Synthesized Signal Generator uses the signal source phase-locked with the same
accuracy as the frequency standard.
(1) Specifications
Frequency readout accuracy:
• MS2665C: ± (Readout frequency × frequency reference accuracy + span × span accuracy + 100 Hz × N);
Span ≥ 10 kHz × N (after calibration)
• MS2667C/68C: ± (Readout frequency × frequency reference accuracy + span × span accuracy);
Span ≥ 10 kHz × N (after calibration)
(N is harmonic order at mixer)
(2) Test instruments
• Synthesized signal generator: 69269A
• Frequency standard