I could swear that there were more posts here after my last...
Nevertheless, today got a short time to play.
First creating a pwm with 400Hz sinewave - Not so easy on the SDG1062X as the menu is somekind of confusing.
But I got it at last and then feeding the scope with it.
Now math, filters, lowpass....And as expected you can´t do it this way.
Don´t know the timebase anymore, something in the higher µs, minimum corner frequency you can adjust is 20Mhz...
When you "allow" to control the samplerate, minimum cornerfrequency drops down to 1Mhz, I need 1Khz in this case...
Try it tomorrow again with much lower timebase in ms range but didn´t expect much from it.
Must learn more about it, but actual I think the filters are not suitable for my purposes in the lower frequencyranges.
In the deleted post (why deleted..) it was mentioned to use the track function.
Two things about it:
To use these functions you must choose advanced measurements, which is annoying because of the permanent displaying table.
Then I could only choose trend(later I know why, RTFM...), took rms for it but a straight line was the result(although the signal of the pwm changes its width)plus the time of the scale is in seconds and you can´t change this.