RIGOL
© 2008
RIGOL
Technologies, Inc.
User’s Guide for DG1022
3-10
Example 8: To Generate a AM Waveform
How to generate an AM Waveform with depth of 70%, The Carrier is a Sine Wave with
2.5 kHz Frequency, and the modulating Wave is a Sine Wave with 150 Hz Frequency.
The operation steps:
1.
Choose the Carrier Function:
Press Sine, and choose the Sine Waveform as the Carrier Wave.
The default setting of the Source is internal.
2.
Set the Frequency of the Carrier.
Press Period/Freq
Freq which will display in reverse color. Input “2.5” from the
keypad and choose the unit “kHz” to set the Frequency as 2.5kHz.
For the other parameters, use the default values, you can view all the parameters
in the Graph mode.
3.
Set the Modulation Type AM.
Press Mod
Type
AM
, Please notice that the state message shown on
the top left side of the screen is “AM”.
4.
Set the Modulation Depth.
Press Depth, use the keypad to enter “70”, choose the unit “%”, setting the
Modulation Depth as 70%.
5.
Set the AM Frequency.
Press AMFreq, use the keypad to enter “150”, choose the unit “Hz”, setting the AM
Frequency as 150Hz.
6.
Choose the Modulating Waveform.
Press Shape
Sine
, to choose Sine Waveform as the Modulating Waveform.
Please note that the State Message on the top left side of the screen shows “Sine”.
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