74 8: Optional Functionality
5. Issue the start command and collect data for at least 17 minutes for the 1000 second
frequency average used to calculate internal oscillators' frequencies.
6. Issue the calibrate command.
If calibrated frequencies cannot be calculated at the time the calibrate command is
issued the 5120A-01 responds with the reason for the failure.
If the command does not cause a response, calibration was successful.
7. Use the calinfo command to verify the newly calibrated frequencies.