User manual

64
Hanning FFT
window
Frequency resolution Good
Amplitude resolution Not good
Suitable for.... Frequency measurement on
periodic waveforms
Flattop FFT
window
Frequency resolution Not good
Amplitude resolution Good
Suitable for.... Amplitude measurement on
periodic waveforms
Rectangular
FFT window
Frequency resolution Very good
Amplitude resolution Bad
Suitable for.... Single-shot phenomenon (this
mode is the same as having no
window at all)
Blackman FFT
window
Frequency resolution Bad
Amplitude resolution Very good
Suitable for.... Amplitude measurement on
periodic waveforms
Adding, subtracting or multiplying signals
Procedure 1. Activate both CH1 and CH2.
CH1 CH2
2. Press the Math key.
MATH