Chapter 9 365
Assembly Descriptions and Block Diagrams
RF and LO Section for 8592L, 8593E, 8594E, 8594L, 8594Q, 8595E, and 8596E Analyzers
RF and LO Section
for 8592L, 8593E, 8594E, 8594L, 8594Q,
8595E, and 8596E Analyzers
The 8592L, 8593E, 8594E, 8594L, 8594Q, 8595E, and 8596E analyzer
RF and LO section includes the following assemblies:
• A3A1 comb generator (except 8595E)
• A3A2 RF switch (8592L and 8593E only)
• A3A3 2.9 GHz LPF
• A3A4 second converter
• A3A5 input attenuator
• A3A6 dual-band mixer (low-band mixer for 8594E, 8594L, and
8594Q)
• A3A8 YTF (YIG-tuned Filter) (except 8594E, 8594L, and 8594Q)
• A3A8 SYTF (Switched YIG-tuned filter) (8595E and 8596E only)
• A3A9 321.4 MHz low-pass filter
• A3A11 step recovery diode
• A3A12 3 dB pad
• A3A15 tracking generator (Option 010)
• A7 analog interface
• A9 third converter
• FL1 3.9214 GHz low-pass filter
For details about the operation of the 8592L, 8593E, 8594E,
8594L, 8594Q, 8595E, and 8596E, RF section, refer to
Figure 9-3 and Figure 9-4, located in the back of this chapter.
The RF section converts all input signals to a fixed 21.4 MHz IF. The
microcircuits in the RF section are controlled by signals from the A7
analog interface assembly. The A7 analog interface assembly also
includes circuitry for controlling the LO and IF sections.
Five frequency bands cover the 8592L, 8593E, 8594E, 8594L, 8594Q,
8595E, and 8596E spectrum analyzers input range.
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