Iwatsu DS-8814, Operation Manual

Page: 37 / 141

18
Trigger
Level
The trigger level setting range is ±5 div from the screen center.
A T mark is shown at the left end of the screen when the trigger coupling
is DC or HF-R.
The T mark position does not change when the vertical gain sensitivity
(VOLTS/DIV) is varied but the trigger level value is varied.
(For details about trigger delay operation, see page 16.)
Press the trigger level knob to set the trigger level in rough steps.
A trigger signal is generated at the cross point of the input signal and the
trigger level.
The relation between the trigger level, delay time and captured waveform
is shown in the figure below.
Trigger signal
: Sets the trigger level within the range of the signal amplitude to trigger.
Trigger signal
generation
6
Trigger delay
Screen center
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5QWTEG
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5NQRG
2QU
O8
Trigger level