- Rigol should google faster implementation of embedded FFT, their slow processing is not sooo Cooley-Tukey.
I do care a lot more to resolution and dynamic range, of course any improvement for update speed will be appreciated.
Here below my probably_hopeless wish list for FFT function on Rigol DS1000Z (and higher, of course) :
1) at least up to 64K FFT points variable resolution
2) fine sample rate control
3) fixed dedicated center freq. control knob
4) fixed dedicated span freq. control knob
5) FFT at full screen without time domain signal graph, it's better for eyes and does not waste CPU/FPGA cycle and I/O bandwidth
6) as option log vertical scale in dBm @ 50ohm
7) cursor peak level search
8 ) changing sample rate does note move central freq as it does right now
9) averaging function
10) some more digit for center freq. and cursor position
This wish list is not intended for the next gen DSOs (Zynq / CycloneV ? ), but for the current generation as a free upgrade for all loyal customers !
If Rigol unleash its devolpment rep. power, the
dick & balls / jumping jack rabbit ** syndrome will definitely be a distant memory.
** tanks Dave, those terms were really funny !