5-1
Keysight N9912A RF Analyzer
Service Guide
5 Theory of Operation
Information in This Chapter
This chapter provides a general description of the operating theory of the
N9912A analyzer.
— Theory of operation is explained to the assembly level only.
— Component-level circuit theory is not provided.
— Simplified block diagrams are included for each functional group.
Chapter Five at-a-Glance
Section Title Summary of Content Start Page
Analyzer System Operation A summary of the theory of operation for the analyzer.
A summary of the operation of the major functional groups
of the analyzer.
page 5-2
Front Panel Group Operation of the assemblies associated with the front panel
group of assemblies.
page 5-4
Measurement Group Operation of the assemblies associated with the
measurement group of assemblies.
page 5-6
Operation in Modes Description of the different operating modes and what
hardware is used in each mode.
page 5-20
Temperature Related
Information
Information about temperature sensors and how the
analyzer responds to temperature information gathered.
page 5-26
User Calibration in CAT and NA
Modes on page 5-27
Descriptions of one port and two port calibrations for the
CAT and NA modes of operation.
page 5-27
Firmware Related Information Information about firmware and firmware upgrades. page 5-29
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