Keysight N9038A Service Guide

470 Keysight N9038A MXE Service Guide
Service and Diagnostics Menus
Service Key Descriptions
Selects the 1 GHz to 2 GHz tunable filter path
Band 6
Selects the 2 GHz to 3.6 GHz fixed filter path
Through
This will select a through path in the RF preselector section. Once
selected, one of the four different internal through paths in the RF
preselector section of the instrument can then be selected from a
submenu. This will allow the viewing of the frequency response of the
selected through path. While none of the through paths are used
during normal instrument operation, they are used during certain
instrument internal alignment routines.
Band 0
Selects the 20 Hz to 2 MHz through path on the A24
Conducted Filter assembly
Band 1
Selects the 2 MHz to 30 MHz through path on the A24
Conducted Filter assembly
Band 2
Selects the 30 MHz to 3.6 GHz through path located on the
A22 Radiated Filter assembly
Band 3
Selects the 20 Hz to 3.6 GHz through path located on the A21
RF Preselector Input assembly
Off
This will return the instrument signal path control to the
normal settings for the current instrument settings. This will
also be accomplished by using the Mode Preset key.
Characterize Preselector
The menu will allow access to the radiated band tunable filters adjustment
routines. These routines are used by the factory as well as when an A22
Radiated Filter assembly is replaced. They can also be used whenever it has
been determined that the shape of any of the filters needs an adjustment
during an instrument servicing. However, it should be noted that once a
filter is characterized, the frequency response performance verification test
for that signal path will need to be run to guarantee the amplitude accuracy
of the instrument is still within advertised specifications. So these routines
should only be run when absolutely necessary.

Keysight N9038A Specifications

General

Brand	Keysight
Model	N9038A
Category	Measuring Instruments
Language	English