Bit-error-rate testers (BERTs) can generate the distinctive bathtub curve characterizing the relationship between the BER and the fraction of the UI that's available for strobing data.

Eye diagrams can provide insight into the performance of a serial data link. While engineers have used eye diagrams for decades, oscilloscopes continually get new features that increase its value.

1. An NRZ eye diagram contains a single eye, while a PAM-4 eye diagram has three vertical eyes. (Courtesy of Tektronix) BER Test BERTs are electronic systems used to detect the BER over any ...

“The new statistical mode in our Channel Simulator eliminates the need for long, multimillion-bit simulations,” said Colin Warwick, signal integrity product manager in Agilent's EEsof EDA organization ...