back to the measurement called Stdev (standard deviation), mostly for fussiness, I will certainly live without ...
Previously I wrote that as the Stdev value I could have kept the one in the statistics (st-dev column) good but it is not right, that would be the st-dev value that concerns the Stdev measurement.
My curiosity, however, was attracted by the Siglent manual: as you can see in the attached image (top screen of the image), in the Siglent manual it is clear that in All measure the Stdev value is identical to the RMS value, when instead it should be. wait very low stdev values ...
In the screen in the center of the image you can see the choice of the Stdev parameter in Type, with the description (yes, we mean that that value is standard deviation).
Still in the image, my measurement of the compensation wave in Av coupling, as seen both in the statistics and in All measure, the Stdev value is similar to the RMS value.
It would be curious to ask the Siglent technicians where they went wrong; or what they mean by Stdev, given that it detects a rather high value and close to the rms measurements of the signal ..
![Phew :phew:](https://www.eevblog.com/forum/Smileys/default/phew.gif.pagespeed.ce.n2uLOVFYMP.gif)