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Keysight Technologies X-Series Signal Analyzers
N9038A MXE Signal Analyzer
Service Guide
6 RF Downconverter Section
What You Will Find in This Chapter
The following information is found in this chapter:
1. Theory of operation of the RF section.
2. Isolating the cause of an hardware problem by verifying the functionality
of assemblies in the RF section signal path.
This following descriptions are found in this chapter:
RF Downconverter Section Description on page 218
RF Section Purpose on page 218
RF Section Signal Paths on page 220
RF Section Assembly Descriptions on page 225
RF Downconverter Section Troubleshooting on page 233
A11 RF Switch / High Band Preamp on page 233
A12 YTF Preselector on page 242
A13 RF Front End Assembly on page 252
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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