Table 2-6
FFT Window Feature Most Suitable Measurement Item
Type Edge
Set CH1 as the signal source trigger signal
Set CH2 as the signal source trigger signal
Set the external trigger input channel as the signal source trigger signal
Set up as grid trigger
Ch1, CH2 trigger their own signals alternately
CH1
C H2
EXT
AC Line
Alter
Source
Slope Rise
Fall
Rise & Fall
Set to trigger on the signal's rising edge
Set to trigger on the signal's falling edge
Set to trigger on the signal's rising and falling edges
Set to sample waveform only if no trigger condition is detected
Set to sampling waveform only when trigger condition is met
Set to sample waveform once when detecting one trigger and then stop
Auto
Normal
Single
Mode
Coupling
DC
AC
HF Reject
LF Reject
Allow AC and DC quantities of the input signal to pass
Intercept DC quantities of the input signal
Reject high frequency quantities above 80kHz of the signal
Reject low frequency quantities below 80kHz of the signal
Note :
With regard to edge and pulse width trigger, the oscilloscope will determine the trigger frequency based on the number of trigger
occurrences. When main frequency counter is on, display comes up at the top right corner. To maintain a stable trigger frequency,
a larger trigger signal range is required.
38
DSO Series User Manual
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