Hi,
I have an HP 8593A spectrum analyzer that was working just fine...but then the internal battery died. Now when I power the unit up, it thinks its' an 8591A instead of an 8593A. One thing of note, is this unit has 859XE firmware, version 930506. It was owned by a senior HP tech, who rebuilt this unit...and as I said, it was working fine before the battery died, but it may have some oddities due to the E firmware. I've verified the CPU board and counterlock are both A boards. I can't tell about the analog interface.
The initial screen has the spectrum upper limit set to 1.8G, which is the upper limit of the 8591A. Running cal fails, no surprise, as the unit doesn't know what it is. Anyone have any idea how to get this unit to recognize that its' an 8593A again?
Any help appreciated!
Austin