6022BE, Software 1.0.5, Wrong FFT display

amy

Sir, You only can calculate by yourself.

FFT frequency calculate：
    The frequency of the full screen = sampling rate/2.
  For example, in the picture, the sampling rate is 8MSa/s.
  The frequency of the full screen should be 4MHz. The frequency of the waveform should be 1MHz.

amy

The square from the scope coupling terminal is used to calibrate the probe. The bandwidth of the square is very low. All the other ingredients are filtered.
The fft has 512 points.
What is the frequency of your signal?

amy

Sir, this is affected by the sampling rate。 When the frequency is low, the sampling rate should be very low.
You can enlarge FFT waveform 10 times,  so that you can see more clearly.



And you can use the vertical cursor to measure the time of the frequency point.
The time / (timebase*10) is the proportion of frequency point. You can use multiply it by the frequency of the full screen to get the result.

amy

chenchijungtw replied at 2017-11-24 20:50
The method you said is not user friendly. My suggestion is focus on user friendly point of view.

Sorry, sir, we don't have plan to update the software.