To View Error Displays - Agilent Technologies 89410A Operator's Manual

Analyzing Digitally Demodulated Signals (Options AYA and AYH)

To view error displays

This task shows you how to view several different error displays, such as
the error-vector magnitude (EVM), magnitude error, and phase error at
each symbol point.
1.
Select four grids:
Press [
2.
Select the symbol table/error summary for the top grid:
Press [
3.
Select an error vector display on trace B:
Press [
Press [
4.
Select an error magnitude display on trace C:
Press [
Press [
5.
Select an error phase display on trace D:
Press [
Press [Data Format
6.
Activate the three lower traces and scale them:
Press [
Press [
7.
Format the display to show bars only at the decision points:
Press [
Press [
8.
Rotate the knob to view errors at the decision points.
The combined error vector
magnitude of all decision points.
The error vector magnitude
of each decision point.
The magnitude error of each
decision point.
The phase error of each
decision point.
Use multiple grids to view error with various measurement data and data formats.
10 - 12
This task is a continuation of the previous task.
], [ ].
Display 4 grids stack
], [ ], [
A Measurement Data
], [ ], [
B Measurement Data error vector time
], [
Data Format magnitude linear
], [ ], [
C Measurement Data
], [ ].
Data Format part real
], [ ], [
D Measurement Data
], [ ].
phase wrap
], [ ], [ ], [ ], [
D Shift C Shift
].
Auto Scale
], [
Data Format more format setup
], [ ], 1, [
Time points/symbol
].
symbol table/error summary
]
].
]
IQ error mag
IQ error phase]
].
B
], [ ]
symbols bars
], [ ].
enter Auto Scale