Using FFT on oscilloscope

[@bentcrazy1324]

I reckon you should have used a modulated sine wave so the FFT shows the carrier and its sidebands.

[@saurabhdhiman718]

How can we find the FFT from the data coming from digital channels in an MSO

[@stephenschultz6266]

Do you mean from data saved from the oscilloscope?

[@saurabhdhiman718]

@@stephenschultz6266 Yes sir.... For example, I have an IC of an 8-bit ADC and I am able to see the 8 digital bit lines on MSO. Now, I want to convert those back to analog form to obtain the FFT ? Is there any inbuilt function/DAC in MSO? How can I plot FFT from those 8 digital bits ?