Applications
V - 70
Function/Arbitrary Waveform Generators
Applications (contd.)
9. Generate an AM
Wave
Generate an AM waveform with 80% depth. The carrier is a sine wave with
10 kHz frequency, and the modulating wave is a sine wave with 200Hz
frequency.
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”1” from the keyboard and choose the unit “Vpp” to set the
amplitude 1Vpp.
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 AM and parameters.
1. Press Mod
→
Type
→
AM , choose AM. Please notice that the
message shown on the middle left side of the screen is “AM Mod”.
2. Press AM Freq, input”200” from the keyboard and choose the unit
“Hz” to set the AM freq 200Hz.
3. Press AM Depth, input”80” from the keyboard and choose the unit
“%” to set the AM depth 80%.
4. Press Shape
→
Sine , to choose sine wave as the modulating
waveform.
When all parameters above are set, the wave generated is shown below :
