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User`s guide

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RIGOL Chapter 12 Signal Source
DS1000Z User’s Guide
12-1
8
Modulation
The built-in signal source the DS1000Z series oscilloscope supports AM and FM
modulations. The modulated waveform consists of carrier waveform and modulating
waveform. The carrier waveform is the signal outputted from the signal source and
the modulating waveform can be the built-in sine, square, ramp and noise signals of
the signal source.
Press Src1Mod to open the Source1 modulation setting menu. Press Mod.Type to
set the modulation type of the current signal to “AM” or “FM”. Then, set the
modulation parameters according to the modulation type selected. Press
Modulation to turn the modulation function on or off.
AM
Amplitude modulation, namely the amplitude of the carrier waveform varies with the
amplitude of the modulating waveform, as shown in the figure below.
Figure 12-8 Amplitude Modulation
1. Select the carrier waveform
Press Src1Conf to enter the waveform setting interface. Press Wave to select
Modulating waveform
Carrier waveform
Modulated waveform