Quite novice with an oscilloscope.
I managed to solder all parts of my EDU09 kit and seems to work properly.
Calibration with the 1.5V battery passed.
Anyway, it seems there is a little problem with the “Transient Recorder” mode. Especially with the View markers horizontally, dV function.
My point is :
at scale 1V/division, if I put the two horizontal bars with ONE separation division, I should read 1V, (no ?) but the software gives me 0.30V
scale 5V/division, the same experience gives me 3V
scale 2V/division -------> 1V
scale 1V/division -------> 0.30 V
scale 0.5V/division------> 0.10V
scale 0.2V/div ----------> 30 mV
scale 0.1v/div ----------> 10 mV
I tried the Run Mode and took 2 pictures at different scale 2v/div and 1 V/div
I put the dv bars to check the voltage from peak to peak.
Apparently, I should read approx 4.7Volts for both and the markers dv/dt gives me 1.35V on 1V/div scale, and 2.41V on 2V/div scale, weird !!
Can you help me sort it out ?
Is this an issue of the parameters on the software?
If I use the Oscillo mode, the “markers DSO” works properly
thanks for you kindly help in advance