Preliminary Checks; The Operator's Check - Keysight N5221A Service Manual

PNA Series Microwave Network Analyzers
N5221A/22A

Preliminary Checks

Preliminary checks include the following:
• "The Operator's Check" on page 3-11
The operator's check tests the network analyzer's basic functionality of the source, switch, and
receivers.
• "The Test Port Cable Checks" on page 3-13
The test port cable checks are not required, but are recommended to verify the performance of the test
port cables before performing the verification test.

The Operator's Check

NOTE To achieve the maximum system stability, allow the analyzer to warm up for at least 90
minutes before performing the Operator's Check.
The operator's check is a software driven test that checks the basic operation of the assemblies in all of the
measurement port signal paths. By performing the operator's check, the following are determined:
• attenuation ranges of all installed attenuators
• calibration of the receivers
• frequency response of the receivers
• phase lock and leveling
• noise floor and trace noise
Accessories Used in the Operator's Check
Equipment Type
Female short, 3.5 mm
Female open, 3.5 mm
Performing the Operator's Check
1. Press UTILITY
System
2. In the PNA Operator's Check dialog box (refer to
attachment of Short/Open, to pause at each step in the process to allow moving the short/open to the
appropriate port, or Shorts/Opens are attached to ALL ports, to run through the test without stopping.
Shorts and opens can be mixed on the test ports.
3. Click Begin.
4. If shorts and opens are not connected to all ports, you will be prompted to connect them as they are
needed.
5. The result of the operator's check will be shown as a PASS or FAIL next to each test (refer to
Service Guide N5222-90001
Part Number
(any short from the 85052B calibration kit)
(any open from the 85052B calibration kit)
Service Operator's Check
, then , then
Figure
.
3-3), under Configure, select either Prompt for
Tests and Adjustments
Preliminary Checks
Figure 3-3).
3-11