The following video shows a reception test of a shortwave DRM station using the direct sampling frontend designed by N2ADR. The SDR software Quisk allows for adjustable filter bandwidth up to 21kHz from version 3.5.2.
The soundcard output was fed into another PC’s soundcard. There DREAM DRM software decoder was running.
DRM reception with N2ADR frontend and Quisk 3.5.2 and DREAM
Watch this video on YouTube.