9-18 IM 701450-01E
Explanation
This section explains the setup procedures for displaying the waveforms of CH1 to CH8/
4 with the phase shifted.
Turning ON/OFF the Phase-Shifted Waveforms
You can turn ON/OFF the display of the phase-shifted waveforms of CH1 to CH8/4.
ON
The phase-shifted waveform is displayed
OFF
The phase-shifted waveform is not displayed
Target Channels for Phase Shifting
The target channels for phase shifting are CH1 to CH4 on the DL7440 and CH1 to CH8
on the DL7480.
Amount of Shift
You can set the amount of shift.
• The selectable range is a time value in the range of –(record length/2) to (record
length/2).
• The resolution is 1÷sample rate*.
* The sample rate varies depending on the record length or T/div setting. For details on the
sample rate, see appendix 1.
• When the record length is 16 MW, the phase cannot be shifted.
Maximum Record Length That Can Be Phase Shifted
The operation is the same as for addition, subtraction, and multiplication. See section
9.2.
Note
• If the waveforms to be computed that were selected in sections 9.2 to 9.7 and 9.9 are phase
shifted, the phase-shifted waveforms are used in the computation.
• If you change T/div after setting the amount of shift, the amount of shift (time value) does not
change. The displayed waveform is only expanded or reduced along the time axis.
• The selectable range and resolution of the amount of shift vary depending on the T/div
setting. The behavior when you change T/div after setting the amount of shift is indicated
below. If you change T/div back to the original setting without changing the amount of shift,
the original amount of shift returns.
• When T/div is set faster (the T/div value is decreased) and the specified amount of shift
exceeds the selectable range of the amount of shift at the new T/div setting, the amount of
shift is set to the maximum value of the selectable range at the new T/div setting.
• When T/div is set slower (the T/div value is increased) and the specified resolution of the
amount of shift falls below the resolution of the amount of shift at the new T/div setting, the
resolution is set to the resolution of the amount of shift at the new T/div setting.
9.8 Shifting the Phase
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