Tektronix dpo2002b 2 channel oscilloscope tektronix dpo2002b p the tektronix dpo2002b is a 2 channel digital phosphor oscilloscope offering up to 70mhz bandwidth and 1gs s sample rate and delivers advanced debug features at an entry level price p p to capture long windows of signal activity while maintaining fine timing resolution the tektronix dpo2002b offers a deep record length of 1m points standard on all channels p p the wave inspector controls of the tektronix dpo 2002b for ra