I'm not a specialist but is the frequency changing or it's the 1st, 2nd, 3rd…Harmonics which stat to be visible when the basic signal is strong ? (7,8Hz).
Harmonics shoult be :
15,6 Hz
23,4 Hz
31,2 Hz
39 Hz
…
I'm not a specialist but is the frequency changing or it's the 1st, 2nd, 3rd…Harmonics which stat to be visible when the basic signal is strong ? (7,8Hz).
Harmonics shoult be :
15,6 Hz
23,4 Hz
31,2 Hz
39 Hz
…