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SDG1000 User Manual 107
3.11. Example 11:Generate a PM Wave
Generate a PM waveform, the carrier is a sine wave with 10kHz frequency,
and the modulating wave is a sine wave with 2kHz frequency, 90°phase
deviation.
Steps:
Set the frequency, amplitude and offset of the carrier wave.
1. Press Sine , and choose the sine waveform as the carrier wave
2. Press Freq and choose Freq which will display in white color. Input’10’
from the keyboard and choose the unit ‘kHz’ to set the frequency 10kHz
3. Press Ampl and choose Ampl which will display in white color. Input’5’
from the keyboard and choose the unit ‘Vpp’ to set the amplitude 5Vpp.
4. Press Offset and choose Offset which will display in white color. Input’0’
from the keyboard and choose the unit ‘Vdc’ to set the offset 0Vdc.
Set the modulation type PM and parameters.
1. Press Mod →Type → PM, choose PM. Please notice that the message
shown on the middle left side of the screen is ‘PM’.
2. Press PM Freq, input ‘2’ from the keyboard and choose the unit ‘kHz’ to
set the PM freq 2kHz.
3. Press Phase Dev, input ‘90’ from the keyboard and choose the unit ‘ °’ to
set the phase deviation 90°.
4. Press Shape →Sine, to choose sine wave as the modulating waveform.
When all parameters above are set, the wave generated is shown in Figure
3- 11:
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