User guide

Table 30
Option Description
Add color... To add an additional color to the
color gradient at the cursor
position. The BER range for this
new color will be assigned
automatically.
Update Plots Dynamically
Rainbow To display a large variety of colors
for the bit error ranges.
Yellow-Blue To display a color gradient from
color1 to color2 for the bit error
ranges.
Green-Blue
Red-Green
Black-White
White-Black
How to Change the BER Threshold
The red slider indicates the present BER threshold. To use another value as
threshold:
• Move the slider with the mouse (or your finger, if you are working directly on
the Serial BERT).
This is particularly useful if you have set the display to show Equal BER at BER
Threshold. By moving the slider, you can investigate the eye openings at destinct
BER thresholds.
N O T E
If no slider for the BER threshold is displayed, make sure that you have enabled the
BER Threshold option on the View tab and that a suitable BER is entered.
Advanced Analysis 6
Agilent J-BERT N4903B High-Performance Serial BERT 293