I am a new user of the small USB soundcard PCSU200. It seems to work correctly with software PC-Lab200 under Windows XP. Unfortunately I cannot find a possibility to calibrate the diagram scale for the frequency values while measuring a sound spectrum. The frequency axis does not fit with the true values of the frequency components. That means that for example a 1000 Hz peak does not fit the 1000 Hz line. If I activate the cursor function the shown value of the frequency is correct but does not correspond to the diagram line. Is there a chance to calibrate the axis?
The spectrum analyzer gridlines are just a “copy” from the oscilloscope screen.
The vertical lines are not adjusted according to the frequency scale.
As you noticed, you can use the cursor function to check the frequency.
[quote=“VEL255”]The spectrum analyzer gridlines are just a “copy” from the oscilloscope screen.
The vertical lines are not adjusted according to the frequency scale.
As you noticed, you can use the cursor function to check the frequency.[/quote]
Sorry but this answer is very disappointed. It is to be expected that the grid lines in the diagrams are correct concerning the frequency values! Do you deliver any other pc-oscilloscope witch has this obvious feature?