Design engineers developing high-speed data and long-haul communications technologies must test their SERDES, ICs, components, modules, and systems to ensure that they are working to specification. It’s critical that test instruments offer performance that exceeds what is being tested. The Tektronix PPG4001 Programmable Pattern Generator delivers the performance and signal quality critical for serial data testing at 40 Gbps. The PPG4001 works with the previously announced 40-Gbps Programmable Error Detector to provide a complete 40-Gbps BERT solution.