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System Maintenance
Theory of Operation
Theory of Operation
Signal Separation
The illustration below shows how directional couplers are used to separate
incident RF signals ("a1" and "a2") from reflected or transmitted RF signals
("b1" & "b2"). The separated RF signals are mixed with a common LO
signal, in order to generate the four IF inputs to the network analyzer.
This process is typical of 8510C mixer-based test sets generally; it is not
unique to the 8510XF.
Figure 5-2
Signal Separation and Mixing
8510XF Network Analyzer Systems 5-9
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