User guide

De-Emphasis
Use this text box to enter the pre-cursor value. The value is interpreted as dB or %
depending of the specified mode.
N O T E
This is applicable ony for N4916B.
Use this text box to enter the pre-cursor value. The value is interpreted as dB or %
depending of the specified mode.
Use this text box to enter the pre-cursor value. The value is interpreted as dB or %
depending of the specified mode.
N O T E
This is applicable ony for N4916B.
Use this text box to toggle between db and percent. Toggling does not change the
value.
Bit Rate
Bit Rate - Concepts
Bit rate is defined as bits per second. The pattern generator's clock rate sets the
bit rate and serves as the frequency reference for the Data, Aux Data, Clock and
Trigger/Ref Clock outputs, your device, and the error detector (if it receives its
clock from the pattern generator). It can be generated internally or supplied from
an external source.
When to Use an External Clock Source?
The Serial BERT's internal clock can be used for most testing purposes. There are
some circumstances, however, when an external clock source is required:
• Synchronization with an external clock
Setting up the Pattern Generator 4
Agilent J-BERT N4903B High-Performance Serial BERT 139
Pre-Cursor
Post-Cursor 1
Post-Cursor 2
Unit