Technical data

Performance Tests 2
N1911A/1912A P-Series Power Meters Service Guide 27
Test Method
1 Obtain the S11 parameter of the calibration system.
2 Connect the measurement system to the calibration system and obtain
its S21 (load) & S21 (open) parameters.
3 Using only the measurement system, terminated with the OPEN
connector from the 85032B calibration kit, measure the 1 mW power
reference level of the DUT.
4 Remove the OPEN connector from the measurement system, terminate it
with the 50 R load from the 85032B calibration kit, and repeat the 1
mW power reference level measurement.
5 Using all of these values, the N7832A software will calculate the VSWR
of the power reference output.
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
NOTE
• This test cannot be performed manually, due to the complexity of the equipment
calibration procedure, and the complexity of the measurement algorithm.
• No adjustment is available for this test if it fails (see Chapter 5, “Troubleshooting
Guide”).