I’ve recently designed and built a small attenuator for a college assignment.
I’ve tested it using the gear at college and it works, perfectly.
However, when testing it with the DSO nano V2 with the 3.64 firmware, I get rather strange values when using the mV range.
I was trying to read a 300mV AC signal on the 10 - 100mV scale at 1kHz which worked fine, but when the frequency increased above that, the signal levelled out to a DC voltage level.
When I switch to a 200mV reading, it works fine again.
Any particular reason for this?