Rigol ds1000b series 4 channel digital storage oscilloscopes 70100200mhz rigol ds1074b this 70mhz digital storage oscilloscope from rigol has been designed with four analog channels and 1 external trigger channel which can capture multi channel signal simultaneously and meet industrial needs the powerful trigger and analyser abilities make it easy to capture and analyse waves while the clear lcd displays and math operations enables users to view and analyse signal faster and more clear