The MTM4UP QA Field Upgrade for MTM400 from Tektronix is a special option available for the MTM400 MPEG Transport Stream Monitor. This unit can be use to upgrade your device in the field to include a QAM Annex A interface.
Field Upgrade for MTM400A
Use this upgrade to add a QAM Annex A interface to your MTM400A MPEG Transport Stream Monitor.