9-2 Service Guide
Accessories Troubleshooting 8719ET/20ET/22ET
Information on This Chapter 8719ES/20ES/22ES
RF Network Analyzers
Information on This Chapter
Use this procedure only if you have read Chapter 4 , “Start Troubleshooting Here.” Follow
the procedures in the order given, unless instructed otherwise.
Measurement failures can be divided into two categories:
• Failures which don't affect the normal functioning of the analyzer but cause incorrect
measurement data.
• Failures which impede the normal functioning of the analyzer or prohibit the use of a
feature.
This chapter addresses the first category of failures which are usually caused by the
following:
• operator errors
• faulty calibration devices or connectors
• bad cables or adapters
• improper calibration techniques
• RF cabling problems within the analyzer
These failures are checked using the following procedures:
• “Inspect and Gauge Connectors” on page 9-3
• “Inspect the Error Terms” on page 9-4