Technical data

12-28 Chapter 12
Theory of Operation
Receiver Theory
Receiver Theory
The receiver functional group consists of the following assemblies:
•A4 sampler/mixer
•A5 sampler/mixer
•A6 sampler/mixer
• A10 digital IF
These assemblies combine with the A9 CPU (described in “Digital Control Theory” on
page 12-9) to measure and process input signals into digital information for display on the
analyzer. Figure 12-10 is a simplified block diagram of the receiver functional group. The
A12 reference assembly is also included in the illustration to show how the 2nd LO signal
is derived.
Figure 12-10 Receiver Functional Group, Simplified Block Diagram