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SIGLENT
SDG2000X User Manual 151
3.14 Example 14: Generate a PSK Modulation
Waveform
Generate a PSK modulation waveform with 200Hz key frequency. The carrier
is a sine wave with 1kHz frequency.
Steps:
Set the frequency, amplitude and offset of the carrier wave.
1. Press Waveforms, and choose the sine waveform as the carrier wave
2. Press Frequency/Period and choose Frequency which will display in blue
color. Input ‗1‘ from the keyboard and choose the unit ‗kHz‘ to set the
frequency to 1kHz
3. Press Amplitude/HighLevel and choose Amplitude which will display in
blue color. Input ‗5‘ from the keyboard and choose the unit ‗Vpp‘ to set the
amplitude to 5Vpp.
4. Press Offset/LowLevel and choose Offset which will display in blue color.
Input ‗0‘ from the keyboard and choose the unit ‗Vdc‘ to set the offset to
0Vdc.
Set the modulation type PSK and parameters.
1. Press Mod → Type → Page 1/2 → PSK, choose PSK. Please notice that
the message shown on the middle left side of the screen is ‗PSK‘.
2. Press Key Freq, input ‗200‘ from the keyboard and choose the unit ‗Hz‘ to
set the key frequency to 200 Hz.
3. Press Polarity → Positive.
When all parameters above are set, the waveform generated is shown in
Figure 3-14.
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