Owon HDS-N series User Manual

OWON HDS-N Series Handheld DSO & DMM 8-Advanced Function of Oscilloscope
Fig.63. Hanning window
Fig.64. Hamming
window
Quick Tips
 If desired, use the zoom feature to magnify the FFT waveform.
 Use the default dB scale to see a detailed view of multiple frequencies, even if they have very
different amplitudes. Use the
Vrms scale to see an overall view of how all frequencies
compare to each other.
 Signals that have a DC component or offset can cause incorrect FFT waveform component
magnitude values. To minimize the DC component, choose AC Coupling on the source signal.
 To reduce random noise and aliased components in repetitive or single-shot events, set the
oscilloscope acquisition mode to average.
Term interpretation
Nyquist frequency: The highest frequency that any Real Time Digital Oscilloscope can measure
is exactly half of the sampling rate under the condition of no mistakes, which is called Nyquist
frequency. If under-sampling occurs when the frequency sampled is higher than Nyquist frequency,
71

Owon HDS-N series Specifications

General

Brand	Owon
Model	HDS-N series
Category	Multimeter
Language	English