Measurement Receiver System Operation; Functional Groups Of The Measurement Receiver - Keysight N5264A Service Manual

Theory of Operation

Measurement Receiver System Operation

Measurement Receiver System Operation
External IF INPUT signals are routed through the IF multiplexer to the digital
processor where there are processed for display.
The Option 108 PNA-X measurement receiver generates an LO signal from the
internal synthesized source that is available at the rear panel LO OUT
connector.
Figure 5-1
Figure 5-1 System Simplified Block Diagram

Functional Groups of the Measurement Receiver

The operation of the network analyzer can be separated into major functional
groups. Each group consists of assemblies that perform a distinct function in
the instrument. Some of the assemblies are related to more than one group,
and all of the groups, to some extent, are interrelated and affect each other's
performance. The major functional groups are:
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5-2
is a simplified block diagram of the measurement receiver system.
Synthesized LO Group (Option 108)
IF Multiplexer Group
Digital Processor and Digital Control Group
Power Supply Group
Keysight N5264A Service Guide