User Manual SMO1000A-S
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Trigger Level
Trigger level and slope define the trigger point,
Input Signal
You can adjust the trigger level for a selected analog channel by turning the
Trigger Level
Knob
.
You can push the
Trigger Level Knob
to set the level to the waveform's 50% value
immediately. If AC coupling is used, pushing the
Trigger Level knob
sets the trigger level
to about 0 V.
The position of the trigger level for the analog channel is indicated by the trigger level icon
(If the analog channel is on) at the left side of the display. The value of the analog
channel trigger level is displayed in the upper- right corner of the display.
Trigger Coupling
Press the
Setup
button on the front panel to enter the TRIGGER function menu, and then
press the
Coupling
softkey and turn the
Universal Knob
or press the
Coupling
softkey
continually to select the desired coupling mode.
The oscilloscope provides 4 kinds of trigger coupling modes:
DC
: allow DC and AC components into the trigger path.
AC
: block all the DC components and attenuate signals lower than 5.8 Hz. Use AC
coupling to get a stable edge trigger when your waveform has a large DC offset.
LF Reject
: block the DC components and reject the low frequency components lower
than 2.08MHz. Low frequency reject removes any unwanted low frequency
components from a trigger waveform, such as power line frequencies, etc., that can
interfere with proper triggering. Use
LF Reject
coupling to get a stable edge trigger
when your waveform has low frequency noise.
HF Reject
: reject the high frequency components (higher 1.27MHz)
Note: trigger coupling has nothing to do with the channel coupling
Содержание SMO1000A-S
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Страница 50: ...User Manual SMO1000A S 50 176 Figure 12 x Interpolation Figure 13 Sinx Interpolation ...
Страница 76: ...User Manual SMO1000A S 76 176 Figure 28 Relative Window Trigger ...
Страница 78: ...User Manual SMO1000A S 78 176 Figure 29 Interval Trigger ...
Страница 82: ...User Manual SMO1000A S 82 176 Figure 32 Runt Trigger ...
Страница 96: ...User Manual SMO1000A S 96 176 Figure 44 SPI Trigger ...