I am using TestStand 4.2 to remotely communicate with and control an MXA N9020A to perform bandwidth analysis at -3dBc and lower. The commands I am using are as per the manual including ":CALC:BWID:NDB-3.00" and ":CALC:BWID:RES?". All works fine and provides the delta frequency bandwidth at -3dBc. What I cannot figure out is how to actually get the f1 and f2 data used in the frequency delta calculation (f2-f1) for this measurement. Can anyone please let me know how to access the extra data associated with this type of measurement?