I have a E4401B 9KHz-1.5GHz analyzer that has lost the standard measurement options (Occupied bandwidth, THD, etc.)
I believe that this is the standard personality that normally comes installed in the instrument. No where in any of the manuals can I find any reference to installation of this feature although on a friend instrument it is installed and the licence area is blank. There must be a re-installation file that allows this to be reloaded somehow. The analyzer is pretty much full boat and has the latest firmware A14.06 IIRC and Boot ROM revision 500. It also has the memory extension option.
Does anyone know where I can find the re-installation disk and also the calibration software as well?