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Chapter 2 Performance Tests
58502A Calibration (Option 010 Only)
2 Use the terminal and serial port to send one of the following SCPI
commands to incrementally adjust the EFC control signal to bring the
oscillator frequency closer to 10 MHz:
DIAG:CAL:ROSC:EFC:ABS UP (or)
DIAG:CAL:ROSC:EFC:ABS DOWN
Where UP increases frequency and DOWN decreases frequency.
3 As you approach the proper frequency, change the step size to smaller
values by sending the following SCPI command:
DIAG:CAL:ROSC:EFC:ABS:STEP <value>
The default step size is 10,000. A recommended first reduction in size
should be to 1,000.
4 Continue to adjust UP or DOWN with finer increments until the
frequency output is 10 MHz
5 Record the date, EFC value, and frequency value on the Calibration
recorded, located on page 2-20.
6 Return the EFC step size to its original value by sending the following
SCPI command:
DIAG:CAL:ROSC:EFC:ABS:STEP 10000
This completes the 58502A calibration.
User's Guide
−
± <
×
1
10
9
(0.01 Hz).
2-19
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