Agilent Technologies 89410A User Manual

To view and change display state definitions
This task shows you how to view and change the state definitions
corresponding to the detection decision points (symbol locations). You can
view and change state definitions for most modulation formats. This task
is a continuation of the previous task.
1. Examine the current state definitions:
Press [
Instrument Mode
], [
demodulation setup
]
Pre ss [
demod format
], [
display state definitions
].
Pressing [
display state definitions
] displays the state definitions for the currently
selected demodulation format. To see the state definitions for a different
demodulation format, select the demodulation format, then press
[
display state definitions
]. If the selected demodulation format doesn’t require
state definitions (such as MSK or pi/4 DQPSK), pressing [
display state definitions
]
does nothing.
2. Recall new state definitions:
Insert the Signals Disk in the analyzer’s disk drive.
Press [
Save/Recall
], [
catalog on]
Rotate the knob to highlight STATES.TXT
Press [recall more
], [
recall sync/state defs
], [
enter
].
3. Examine the new state definitions:
Press [
Instrument Mode
], [
demodulation setup
]
Press [
demod format
], [
display state definitions
].
To learn how to create your own state definitions, see the “STAT_DEF” file
on the Signals Disk. This file contains instructions and sample state
definitions for all modulation formats that have modifiable state definitions.
You can edit the file with any ASCII editor or with the IBASIC editor (if
you have the IBASIC option installed). You may want to view the
“STATES.TXT” file on the Signals Disk, which was created by modifying
and saving a portion of the “STAT_DEF” file.
Analyzing Digitally Demodulated Signals (Options AYA and AYH)
10 - 10

Agilent Technologies 89410A Specifications

General

Brand	Agilent Technologies
Model	89410A
Category	Measuring Instruments
Language	English