Anritsu 37 D Series, Maintenance Manual

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Post Calibration
Actions
After the calibration process is completed, perform the following ac-
tions, as appropriate:
If calibration passes:
Save the calibration data to (hard) disk, as follows:
Step 1. Press the Option Menu key (Enhancement key group) to dis-
play the OPTIONS menu.
Step 2.
Select DIAGNOSTICS from the menu, then select in se-
quence: H/W CALIBRATIONS |DISK OPERATIONS
|SAVE TO HARD DISK|HW_CAL.ALC.
Perform the Port 1 Power test in Chapter 4, Operational Performance
Tests. If the test fails, proceed to Chapter 7, Troubleshooting.
If calibration fails:
q
Verify that the GPIB cable is connected to the Dedicated GPIB
(bottom) connector on the VNA’s rear panel.
q
Verify that the power meter and sensor are functioning correctly,
the cables are in good condition, and all connections are secure.
q
Verify the correct power sensor data exists in the power meter.
q
Repeat the calibration. If it still fails, then proceed to Chapter 7,
Troubleshooting.
ADJUSTMENTS RF POWER/ALC CALIBRATION
37XXXD MM 6-13