There were some questions about what this is for. A quick reference is here:
/g/HP-Agilent-Keysight-equipment/message/115717?p=,,,20,0,0,0::Created,,HP4276A,20,2,0,82870949
If there's enough interest, I can open up a new thread about this specific project, with a lot more info on the plans and progress.
Ed