There must be something wrong with the offset functionality of this thing...
-Feeding sine (F=50Hz, DC=50%, Amp=80Vp, Offset=0V) into a RC (L) lowpass filter (100K & 100uF)
-Type in a +5V offset and observe the DC shift on the scope... looks fairly OK
-Offset back to 0V
-Set F much higher, e.g. F=50Khz
-Type in the +5V offset as before... Now the the DC shift observed on the scope is moving VERY slowly, should be the same as with F=50.
Atemporary workaround (also proving the above problem) is to insert a (switchable) DC source in the generator's ground wire...The DC component out of the filter now
moves 100's of times faster, more in line with the filter's time constant & reality.
Pls. Fix.
