Analyzer System Operation; Functional Groups Of The Analyzer - Keysight N9912A Service Manual

Theory of Operation

Analyzer System Operation

Analyzer System Operation
The N9912A RF analyzer operates as both a network analyzer (NA) and a
spectrum analyzer (SA). The NA functions support the CAT mode.
— The NA function supports one port measurements using the RF OUT port
— The SA function supports measurements using the RF IN port.
See
system.
All N9912A RF analyzers have the same hardware. Options to increase
functionality are enabled via licenses, additional hardware is not required.

Functional Groups of the Analyzer

The operation of the analyzer can be separated into two major functional
groups. Each group consists of assemblies that perform distinct functions.
Some of the assemblies are related to more than one group, and both groups,
to some extent, are interrelated and affect each other's performance.
The major functional groups are:
—
—
Front Panel Group
The front panel group consists of the following:
—
—
Measurement Group
The measurement group consists of the following:
—
—
—
—
5-2
and two port measurements using both the RF IN and RF OUT ports.
Figure 5-1 for a simplified block diagram of the overall RF analyzer
Front Panel Group
Measurement Group
A2 LCD Assembly
A3 Front Panel Interface Board
A4 RF Board
A5 System Board
A6 SOM Board
Main Battery
Keysight N9912A Service Guide