Agilent Technologies HP 8719D Service Manual page 78

1. Ensure that the power meter and power sensor are operating to specification.
2. The source relies on the power linearity adjustment for correct performance.
Refer to "Power Linearity Adjustment" and perform the procedure. Then
repeat this test.
3. If the analyzer repeatedly fails this test, refer to "Source Troubleshooting"
located later in this manual.
System Verification and
Performance Tests