Hello Ivan,
Excellent feedback and suggestions. We are aware of the limitations of Zero-Span and hope we can address them in the future. We are also aware of the need for triggering in modulation analysis. As always, I cannot specify any time frame for when we might address these issues, but we do record all suggestions and feedback and use them when making decisions about what to pursue next. We very much appreciate it.
You might be interested to know that there is very basic I/Q capture functionality in Zero-Span mode along the bottom of the screen. It allows you to save a burst I/Q capture to a file as CSV. You would then need to convert it to an amplitude/phase/frequency value in a spreadsheet program, but this might help you.
Regards,
A.J.
