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Found 3 results

  1. Hi, for the captures below, first channel 1 and then channel 2 see a 1Vpp (500 mV amplitude) sine wave at 5.501 kHz... the Ch1 FFT looks right, but maybe the vertical scale on Ch2 is not accurate... it is labeled "Ch1" and the range is -1000mV to +1000mV, peak location not plotted at 500mV for Ch2... but in both cases the little tag reads the appropriate amplitude... for a while this has confused me as to what normalization the FFT used... pretty sure it is amplitude, not pp or RMS... but perhaps the display for Ch2 needs some analysis... best, Harry Nelson
  2. Hi, I don't see the "Bode plot" tool up in the upper right corner of the display window... seems to be 6, vertically... (1) FFT (2) expand to full time base (3)recenter time base (4)download (5)Pinout (6)full reset Firmware version is 1.301.0, says that is latest in configuration, macOS High Sierra, 10.13.6. thanks, Harry
  3. Greetings... Waveforms Live and OpenScopeMZ have generally worked very well for me. One small problem is the RMS calculation in the Math Menu. It seems not to subtract off the mean value... seems to be sqrt((1/(N-1)) (Sum (V^2))), should be sqrt((1/(N-1))(Sum((V-V_mean)^2)))... anyone else notice this? I work around by outputting the .csv file and computing there. Thanks for any help for feedback.