Fm -21 – RIGOL MSO/DS2000A Series User Manual

Page 245

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Chapter 13 Signal Source

RIGOL

MSO2000A/DS2000A User’s Guide

13-21

FM


FM (Frequency Modulation), namely the frequency of the carrier waveform changes
with that of the modulating waveform, as shown in the figure below.

Figure 13-11 Frequency Modulation


1. Select the Carrier Waveform

Press Setup1 to enter the waveform setting interface. Press Wave to select the
desired carrier.

Note:

When “Pulse”, “DC” or “Noise” is selected, the modulation menu will be

hidden automatically.

2. Set the Carrier Parameters

After selecting the desired carrier, you can refer to the introduction in
Parameter Setting Method to set the carrier parameters (frequency,
amplitude, etc).

3. Select the Modulating Waveform

Press Modulation to open the source 1 modulation setting menu. Press Shape
to select the desired modulating waveform, including sine, square, ramp
waveform or noise.

4. Set the Modulation Frequency

Press Freq to set the frequency of the modulating waveform. The range is from

Modulating Waveform

Carrier Waveform

Modulated Waveform

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