Keysight N5264A Service Manual page 65

Theory of Operation
Measurement Receiver System Operation
Synthesized LO Group (Option 108)
The built-in synthesized source generates a swept, stepped, or continuous
wave (CW) signal in the frequency ranges as listed in
The LO signal is sent directly to the rear panel LO OUT connector.
Refer to
IF Multiplexer Group
The IF multiplexer group provides five rear panel IF input signals that are sent
to the A12 SPAM board for digital processing.
Refer to
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
page 5-14.
Power Supply Group
The power supply functional group provides power for the other assemblies in
the instrument.
Refer to
Keysight N5264A Service Guide
"Synthesized LO Group Operation (Option 108)" on page
"IF Multiplexer Group Operation" on page
"Digital Processing and Digital Control Group Operation" on
"Power Supply Group Operation" on page
Table 5-2.
5-4.
5-12.
5-19.
5-3