I downloaded the UltraSpectrum application (15-day trial) and though I have just played with it a bit I have not yet found anything about it that is worth $260.
To get it to work with the DSA815 you have to edit the
UltraSpectrum.ini file it will load into the
C:\Program Files\RIGOL Technologies, Inc\Ultra Sigma\Instrument Tools folder. The highlighted line shown below must be added to indicate the DSA815 is a supported instrument:
I also shortened up the folder and application name that had both been absurdly long;
The folder being
RIGOL_DSA1000A_Tools_UltraSpectrum_V00.01.00.10With the .exe, .ini and .aliases files being the same with the appropriate extension.
Here is what the "Base" screen looks like:
Note that none of the analyzer's settings are populated, I don't know if this is an issue with the '815 or the software.
There is an "Advanced" screen also:
I was unable to make anything on the lower panel work, however I must admit I have not read the help file as yet.
I was able to compile, debug, and modify their VB6 demo application to talk to the DSA815 via the ethernet connection, adding commands to grab the center and span frequencies, RBW, etc. I am going to work on reconfiguring my Instek GSP-810 app to work with the '815, should be fairly easy.
Here is the trace data retrieved from the instrument, plotted in Excel: