I read images into matlab and converted the images into RF spectrum by use of the IFFT and also added some funny NBFM radio transmissions.
put everything in a single I/Q data file, streamed the data to a vector signal generator and had the airspy dongle with SDR# software decode the spectrum and radio signals.
enjoy all and thanks for watching.
https://www.youtube.com/watch?v=z10ISekkOQs