Basic Operation Normal: For the oscilloscope model with the bandwidth of 100MHz, the maximum sample rate is 1GS/s. For time base with insufficient sample rate, you may use the Sine Interpolation Algorithm to interpolate points between sampled points to produce a complete waveform record (4K by default). Normal Acquisition Intervals Normal Mode Acquires a Single Sample Point in Each Interval Peak Detect: Use this mode to detect glitches within 10ns and to limit the possibility of aliasing. This mode is valid at the TIME/DIV setting of 4µs/div or slower.
Once you set the TIME/DIV setting to 4µs/div or faster, the acquisition mode will change to Normal because the sample rate is fast enough that Peak Detect is unnecessary. The oscilloscope does not display a message to tell you that the mode has been changed to Normal. Average: Use this mode to reduce random or uncorrelated noise in the signal to be displayed. Acquire data in Normal mode and then average a great number of waveforms. Choose the number of acquisitions (4, 16, 64 or 128) to average for the waveform. Stopping the Acquisition: When you are running the acquisition, the waveform display is live. Stop the acquisition (press the RUN/STOP button) to freeze the display.
In either mode, the waveform display can be scaled or positioned by vertical and horizontal controls. Equivalent Acquisition: Just repeat the Normal acquisition. Use this mode to take a specific observation on repeatedly displayed periodic signals. You can get a resolution of 40ps, i.e. 25GSa/s sample rate, which is much higher than that obtained in real-time acquisition. The acquisition principle is as follows. DSO1000B(V) Series HandHeld Oscilloscope User Manual 34 64 128 LongMem (Real Time) 4K, 40K, 512K, 1M Select the memory depth for different board models. 1 2 3 4 5 6 7 8 9 10 Points