Thanks, more or less what I found. Their software was pretty underwhelming, from memory, and the lack of docs for the remote command set makes it unusable here. Picked up an HP 34972a a while back, 6.5 digit and extensively documented. Fluke are usually pretty good, so why this blatant market control ploy ?. If I buy an instrument, expect to be able to use all it's functions, not just a subset, nor be forced to buy their expensive bloatware apps to use it. Still, HP Benchlink is not ideal either, windows centric, bloatware install, several packages needed, at vast expense. Better to write your own if you can...