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Enter
Shift |
| Freq |
Shift |
| Level |
Chapter 3
To output a modulated waveform
4Move down a level verify that “SINE” is selected.
For the modulating waveform, you can select a sine, square, triangle, ramp, noise, or arbitrary waveform. For this example, you will modulate the carrier with a sine waveform. Notice that the AM annunciator flashes, indicating that the displayed parameter is for AM.
SINE
5Save the change and turn off the menu.
The modulating waveform is now a sine waveform.
ENTERED
6Set the modulating frequency to 200 Hz.
Notice that the AM annunciator flashes, indicating that the displayed frequency is the modulating frequency. Also notice that the modulating frequency is displayed with fewer digits than the carrier frequency.
MOD 200.0 Hz
This message appears on the display for approximately 10 seconds. Repeat this step as needed.
7Set the modulation depth to 80%.
Notice that the AM annunciator flashes, indicating that the displayed percentage is the AM depth (also called percent modulation).
080 % DEPTH
This message appears on the display for approximately 10 seconds. Repeat this step as needed.
At this point, the function generator outputs the AM waveform with the specified modulation parameters.
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