3-22 Service Guide N5227-90001
Tests and Adjustments PNA Series Microwave Network Analyzers
System Verification N5227A
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
11
and S
22
phase
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
1.85 mm 2.4 mm 3.5 mm Typ e-N
Calibration kit
85058B/E
N4694A ECal
85056B/D
N4692A ECal
85052B, C, D
N4691 ECal
85054B/D
N4690A E-cal
Verification kit 85058V 85057B 85053B 85055A
Cables
N4697E
85133C/D/E/F
Single cable: 85134E
Cable pair: 85134F
Single cable: 85135E (2.4 mm NMD
to 7 mm)
Cable pair: 85135F (2.4 mm NMD to
7 mm)
Adapters
None required
None required None required
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.