Tektronix tds3000c series digital phosphor storage oscilloscopes tektronix tds3054c this 4 channel 500mhz digital storage oscilloscope features digital phosphor technology that gives continuous fast waveform capture rates and persistent waveform display making it easier to spot infrequent and spurious signalsthe instrument has 25 automatic measurements and is easy to set up and use a 65in colour tft display makes signal analysis easy and displays on screen data clearly and unambiguouslyt