That tends to suggest that the software is wrong. Can you post it.
It could be also that there is a lot of pickup on the signal that the voltmeter is not seeing.
A good photograph of your setup might help us spot something.
That tends to suggest that the software is wrong. Can you post it.
It could be also that there is a lot of pickup on the signal that the voltmeter is not seeing.
A good photograph of your setup might help us spot something.