This is definately not a 100Mhz scope as advertised on your website and even with only 1 channel used it battles to properly read a useful 25mhz signal if not pure sinewave. Really a big dissapointment. 1Gs/sec - not sure where this information was calculated or where it is coming from or how that rates was used from as the waveform gets really distorted due to an addequite sampling rate when higher frequencies are measured. Tried to even measure a tv remote control IR Led without any useful data that can saved.