Rf Section Description; Purpose - Keysight n9020a Service Manual

Mxa signal analyzer

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RF Section Troubleshooting

RF Section Description

This section covers only those optional frequency ranges listed below for the

N9020A, Signal Analyzer.

— Option 503, 3.6 GHz Frequency Range

— Option 508, 8.4 GHz Frequency Range

— Option 513, 13.6 GHz Frequency Range

— Option 526, 26.5 GHz Frequency Range

The RF input signal can be routed through three different front end signal

paths. These various paths are switched in and out based on where the signal

analyzer center frequency is tuned.

1. Low band RF path is used when the input frequency is ≤ 3600 MHz

2. High band RF path #1 is used when the input frequency is > 3.6 GHz to

3. High band RF path #2 is used when the input frequency is > 13.6 GHz to

The RF section is designed to convert RF input signals to an intermediate

frequency (IF) that is present at the RF output of the A13 Front End assembly.

This IF depends on installed options and the IF path selected. This chapter will

assume the default operation in Spectrum Analyzer mode. Therefore, the IF will

be 322.5 MHz.

10 MHz (standard)

25 MHz (Option B25)

40 MHz (Option B40)

Spectrum Analyzer or

X seriesN9020a