Agilent Technologies N5230A, Service Manual, Page: 40 / 262

3-10 Service Guide N5230-90014
Tests and Adjustments PNA Series Microwave Network Analyzers
Preliminary Checks N5230A
Preliminary Checks
Preliminary checks include the following:
• “The Operator’s Check” on page 3-10
The operator’s check tests the network analyzer’s basic functionality of the source,
switch, and receivers.
• “The Test Port Cable Checks” on page 3-12
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 the Port 1 and Port 2 signal paths. By performing the operator’s check, the
following are determined:
• repeatability of the RF test port switch
• 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
Performing the Operator’s Check
1. From the
System
menu, point to
Service
, and then click
Operator’s Check
.
2. In the PNA Operator’s Check dialog box (refer to Figure 3-3 ), under Configure , select
either
Prompt for 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.
Equipment Type Part Number
Female short, 3.5 mm (any short from the 85052B calibration kit)
Female open, 3.5 mm (any open from the 85052B calibration kit)