After 18 months I'm getting back to my E4406A. My problem was/is that a failed firmware upgrade attempt left me with no synthesizer cal coefficients -- a 0 byte EEPROM1 file in the backup created on the WinXP machine.
I now have the firmware successfully updated but still get the missing cal coefficients message.
Back when I was working on it before, Hardy sent me a set of files to put on a floppy and run on the analyzer to pull the configuration. I tried that and the only thing that happens when I boot with that floppy is that the screen says "Installed. Please remove disk and power cycle." Doing that just leads to a normal startup, so I don't know quite what happened there.
There appears to be a utility disk for the 4406A. That might be helpful. Does anyone have a copy they could send me?
And is there any other guidance on this problem? It's hard to believe that a firmware update failure could lose cal constants, so I am hoping the data might still be somewhere on the machine.. I just don't know how to get to it.
Any help appreciated!
Thanks,
John
