Keysight N9038A Service Guide

168 Keysight N9038A MXE Service Guide
RF Preselector Section
RF Preselector Section Purpose
The broadband noise source is used by the system alignment routine to
adjust the amplitude accuracy of the Radiated filter path. If it also used to
alignment the adjustable bandpass filters located on the A22 Radiated
Filter assembly. This broadband noise source generates a near white noise
signal which is relatively flat from 10 MHz to 4 GHz.
A21 RF Preselector Input Assembly Connections
The connections to and from the A21 RF Preselector Input assembly are as
listed in Table 5-1 and as illustrated in Figure 5-1 below.
Table 5-1 A21 RF Preselector Input Assembly Signals
Port Description To/From Cable
J100 IF Input SW2 Transfer Switch P2 W31
J101 RF Output SW2 Transfer Switch P3 W36
J102 Radiated Path Output A22 Radiated Filter
Assembly J100
W34
J103 Conducted Path Output A24 Conducted Filter
Assembly J402
W32
J200 Conducted Path Input A24 Conducted Filter
Assembly J401
W33
J306 Radiated Path Input A22 Radiated Filter
Assembly J300
W35
J500 JTAG Programming n/a n/a
J600 Bias and Control A8 Motherboard J71 n/a
J602 Limiter Assembly Control A23 Limiter Assembly
J108
W1
P600 SW1 & SW2 Control SW1 Cal Switch & SW2
Transfer Switch
W2

Keysight N9038A Specifications

General

Brand	Keysight
Model	N9038A
Category	Measuring Instruments
Language	English