Table of Contents
Advertisement
8
Jitter Tolerance Tests
Measurement Results
Instrument Capability
448
During a jitter tolerance compliance test, jitter with the specified jitter amplitude
is sequentially applied at a number of frequency points in the frequency range of
interest.
The receiver checks for transmission errors and measures the bit error rate.
The graphical display shows the results.
A green circle indicates that the BER at this point did not exceed the target BER.
A red cross indicates that the BER at this point exceeded the target BER. If this
happens, the test is marked as "failed".
A table below the graph provides details about the measurement conditions like
date/time, data pattern, bit rate, and added jitter components.
The measurement results for each point can also be exported as a numerical list
in text format.
The maximum jitter amplitude the Serial BERT can generate is also frequency
dependent, as illustrated below.
Agilent J-BERT N4903B High-Performance Serial BERT
Advertisement
Table of Contents
