Performing System Verification - Keysight N5221A Service Manual

PNA Series Microwave Network Analyzers
N5221A/22A

Performing System Verification

The following verification procedure is automated by the analyzer firmware. The process for the verification
is:
• connect cables to the analyzer test ports
• perform a calibration or recall a recent calibration
• run the system verification program for the verification devices
Each time through the verification process, you are prompted to make necessary connections and perform
or recall a calibration as part of performing the verification. If you select to perform a calibration, you are
guided through the calibration procedure. This part of the process can be eliminated if you choose to load an
existing recent calibration. If necessary, refer to the analyzer's on-line embedded help for information on
storing and recalling calibrations.
For each verification device, the analyzer reads a file from the verification disk and sequentially measures
the magnitude and phase for all four S-parameters.
IMPORTANT For system verification to perform correctly, it is NECESSARY that the verification devices be
measured with their female connectors connected to the analyzer's test ports.
NOTE Although the performance for all S-parameters are measured, the S
uncertainties for the attenuators and airlines are less important for verifying system
performance. Therefore, the limit lines will not appear on the printout.
Equipment Used in the System Verification Procedure
Equipment Type
85052B, C, D
Calibration kit
N4691A E-cal
Verification kit 85053B
Single cable: 85131C/E
Cables
Cable pair: 85131D/F
Adapters None required.
Service Guide N5222-90001
3.5 mm
85054B/D
N4690A E-cal
85055A
Single cable: 85132C/E (3.5 mm NMD to 7 mm)
Cable pair: 85132D/F (3.5 mm NMD to 7 mm)
With single cable: an 85130C adapter and a 7mm to Type-N
adapter from the 85054B calibration kit.
With cable pair: Two 7mm to Type-N adapters from the 85054B
calibration kit.
Tests and Adjustments
System Verification
and S phase
11 22
Type-N
3-23