Keysight Technologies N5247B, Service Manual

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Keysight N5247B Service Guide 5-9
Theory of Operation
Network Analyzer System Operation
Receiver Group
Refer to the NOTE notice on page 5-1 . The receiver converts the test and
reference signals to 7.606 MHz intermediate frequency (IF) signals for signal
processing, retaining both magnitude and phase characteristics. For analyzers
with DSP version 4.0, the IF signals are 7.606 MHz. For analyzers with DSP
version 5.0, the IF signals are 7.438 MHz. The IF signals are converted to digital
information by the digital processing group.
Refer to
“Receiver Group Operation” on page 5-53 .
Digital Processor and Digital Control Group
The digital processor and digital control group are divided into a front panel
group and a data acquisition and processing group. The front panel group
provides communication to the network analyzer. The data acquisition and
processing group provides the output to the display, in addition to signal
processing and analyzer control.
Refer to
“Digital Processing and Digital Control Group Operation” on
page 5-59 .
Power Supply Group
The power supply functional group provides power for the other assemblies in
the instrument.
Refer to
“Power Supply Group Operation” on page 5-64 .