Keysight Technologies, Inc. recently added a 92-GSa/s, 32-GHz modular instrument to its portfolio of arbitrary waveform generators. The new high-speed, wide-bandwidth M8196A arbitrary waveform generator allows engineers to generate digital, multi-level (e.g., PAM-4, PAM-8, DMT) signal scenarios at 8 bits vertical resolution and test their electrical and optical links with complex modulated signals up to 64 GBaud.