Dear all,
I have read this thread with interest and utter admiration! I have recently acquired an almost working E4411B which I'm trying to fix. Eventually, and if the repair session goes well, the E4411B will deserve to have option 1DR (narrow BW) enabled. However, I fail to see exactly which steps to carry out in order to enable this option. Could some of you perhaps be persuaded to write up a small tutorial that takes the reader through the concrete steps? My E4411B has FW version A.14.03 and was born with B72 Expansion Memory, so I guess an update should be doable.
Best regards