Keysight Technologies N1911A, Руководство по обслуживанию

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2 Performance Tests
28 Keysight N1911A/1912A Service Guide
Time Base Frequency Accuracy
Description
The accuracy of the 100 MHz sample clock determines the accuracy of all
measurements that are based on samples taken over time. This test measures the
time base by dividing the sample clock by 10 (within the meter) and feeding it out
of the trigger output connector, where it can be directly measured by a frequency
counter.
Equipment
– Required test equipment:
1 unit of 53132A frequency counter
10 MHz frequency standard
1 unit of 10503A BNC cable
– An alternative frequency counter can be used, as long as it has the appropriate
bandwidth (> 10 MHz)
Figure 2-5 Time base test setup connection diagram
Ch A
FREQUENCY COUNTER
P-SERIES
POWER METER
Channel 1
Ref In
10 MHz
standard
Trigger
output
BNC cable
NOTE
For rear panel options, the connections will differ from the illustration shown
here. Refer to the connector identification markings on the rear panel for further
details.