Keysight N9038A Service Guide

Keysight N9038A MXE Service Guide 267
L.O. Synthesizer
A14 L.O. Synthesizer Assembly Troubleshooting
Figure 7-3 1st LO Frequency and Amplitude
7. Continue to change the instrument input frequency according to Table 7-3
to verify the 1st LO frequency and amplitude level across its tuning range.
If there is a problem with the frequency or amplitude of the 1st LO output signal, and the 4800
MHz Reference input signal is known to be good (See Chapter 9, “Reference Assembly”),
the A14 LO Synthesizer board itself is most likely at fault.
Table 7-3 Instrument Input versus 1st LO Tune Frequency
Instrument Input Frequency 1st LO Frequency
50 MHz 5,172.5 MHz
3.5 GHz 8,622.5 MHz
3.65 GHz 3,922.5 MHz

Keysight N9038A Specifications

General

Brand	Keysight
Model	N9038A
Category	Measuring Instruments
Language	English