User Manual

116
Use math menu
Picture 3-43 FFT windowing
Hanning, hamming window：
Better analysis for frequency rate, not for amplitude rate. Hamming window frequency rate
is better than hanning window. It is recommended to measure sine, cycle and narrow band
random noise.
BlackmanHarris window：
Best analysis for amplitude rate, but not for frequency rate. It is recommended to measure
single frequency signal, look for higher harmonics.