AEMC OX 7102 III, User Manual

Page: 181 / 226

Applications
SCOPIX IX - 181
Applications (cont’d)
11. Min / Max
Acquisition
Detection of a wrong representation due to under-sampling
Examination of an amplitude-modulate signal
• Using the key shown
opposite
, select the "Oscilloscope" mode.
• Inject on the CH1 input an amplitude-modulated sinusoidal signal at a.
frequency of 15Hz.
• Inject on the CH4 input a sinusoidal signal at 300 Hz and 3 V
DC
.
for synchronization of the signal on CH1.
• Adjust the scan speed:
using the scrollbar in the time base window: 1 ms/div
or using the keys
opposite.
• Validate the CH1 signal: Vert Menu Display Trace 1
or using the key
opposite.
or on the display of the CH1 trace parameters.
• Adjust the CH1 sensitivity:
Vert Menu CH1 Sensitivity/coupling: 200 mV/div
or using the keys
opposite.
• Ditto for CH4 with a sensitivity of: 500 mV/div
• Adjust the trigger parameters:
Trig. Menu Parameter Main:
Source: CH4
Coupling: AC
Front: + or using the key
opposite.
• Adjust the trigger mode:
Trig. Menu Auto Mode:
or using the SGLE REFR key.
• Start acquisition using the RUN/HOLD key (RUN mode).
• Use the FULL TRACE key to display the 2 traces separately.
Examination of the signals
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