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Keysight Technologies X-Series Signal Analyzers
N9038A MXE Signal Analyzer
Service Guide
5 RF Preselector Section
What You Will Find in This Chapter
The following information is found in this chapter:
1. Theory of operation of the RF Preselection section.
2. Isolating the cause of an hardware problem by verifying the functionality
of assemblies in the RF Preselector section signal path.
This following descriptions are found in this chapter:
RF Preselector Section Purpose on page 164
RF Preselector Section Signal Paths on page 164
RF Preselector Section Assembly Descriptions on page 166
A21 RF Preselector Input Assembly on page 166
A22 Radiated Filter Assembly on page 170
A24 Conducted Filter Assembly on page 173
RF Preselector Section Troubleshooting on page 175
A21 RF Preselector Input Assembly on page 175
A22 Radiated Filter Assembly on page 194
A24 Conducted Filter Assembly on page 204
Each section describes how the assembly works and gives information to help you troubleshoot
the assembly. Each description covers the purpose of the assembly, describes the main
components, and lists external connections to the assembly.
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