User`s guide

Chapter 2 Front Panel Operations RIGOL

DG1000Z User’s Guide 2-39

Frequency Modulation (FM)

For frequency modulation (FM), the frequency of the carrier waveform varies with

the instantaneous voltage of the modulating waveform.

To Select FM Modulation

Press Mod  Type  FM to enable FM function. When Mod is enabled, Sweep or

Burst will be disabled automatically (if enabled currently).

To Select Carrier Waveform Shape

FM carrier waveform could be Sine, Square, Ramp or Arbitrary waveform (except

DC). The default is Sine.

 Press the front panel key Sine, Square, Ramp or Arb (you need to press

Select Wform in the arbitrary waveform setting interface to select the desired

arbitrary waveform) to select the desired carrier waveform shape.

 Pulse, Noise and DC could not be used as carrier waveform.

To Set Carrier Waveform Parameters

The different settings of various parameters (frequency, amplitude, DC offset, start

phase and etc.) of the carrier waveform will influence the FM modulated waveform.

For different carrier waveform shape, the ranges of the various parameters are

different (the ranges are related to the model of the instrument used and the carrier

waveform currently selected. See “Specifications” for details). For all carrier

waveform shapes, the default values are 1kHz frequency, 5Vpp amplitude, 0V

offset and 0° start phase.

 When the carrier waveform currently selected is Sine, Square or Ramp, please

refer to the introduction in “To Output Basic Waveform” to set the

parameters of the carrier waveform currently selected.

 When the carrier waveform currently selected is arbitrary waveform, please

refer to the introduction in “To Output Arbitrary Waveform” to set the

parameters of the carrier waveform currently selected.