Performing System Verification - Keysight N5224A Service Manual

Tests and Adjustments
System Verification

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 that was created by the verification process. 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 port 1 or 3 and their male connectors
connected to port 2 or 4.
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
85056B/D
Calibration kit
N4692A ECal
Verification kit 85057B


Cables
85133C/D/E/F



Adapters None required
3-22
2.4 mm
85052B, C, D
N4691 ECal
85053B
Single cable: 85134E
Cable pair: 85134F
None required
PNA Series Microwave Network Analyzers
3.5 mm
85054B/D
N4690A E-cal
85055A
Single cable: 85135E (2.4 mm NMD
to 7 mm)
Cable pair: 85135F (2.4 mm NMD to
7 mm)
With single cable: an 85130E
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.
N5224A and N5225A
and S phase
11 22
Type-N
Service Guide N5225-90001