RIGOL Chapter 2 Front Panel Operations
2-48 DG1000Z User’s Guide
Frequency Shift Keying (FSK)
When FSK (Frequency Shift Keying) modulation is selected, you can configure the
generator to “shift” its output frequency between two preset frequencies (“carrier
frequency” and “hop frequency”).
To Select FSK Modulation
Press Mod Type FSK to enable FSK function. When Mod is enabled, Sweep
or Burst will be automatically disabled (if enabled currently).
To Select Carrier Waveform Shape
FSK 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 FSK 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
DC
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.
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