Modulation source, To set 4fsk rate, To set hop frequencies – RIGOL DG4000 Series User Manual
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RIGOL Chapter 5 Modulated Waveform Output
DG4000 Series User’s Guide
5-28
Carrier Waveform
Frequency Range
Sine
1μHz to 160MHz
Square
1μHz to 50MHz
Ramp
1μHz to 4MHz
Arbitrary Waveform
1μHz to 40MHz
After the carrier waveform is selected, you can press Freq/Period to highlight
“Freq”, and then use the numeric keyboard or direction keys and knob to input the
desired frequency value.
Modulation Source
4FSK uses internal modulation source and the modulating waveform is Sine.
To Set 4FSK Rate
4FSK uses internal modulation source. Press KeyFreq to set the frequency at
which the output frequency shifts between “carrier frequency” and three “hop
frequencies”.
Use the numeric keyboard or direction keys and knob to input the desired
frequency value.
The frequency range is from 2mHz to 1MHz and the default is 100Hz.
To Set Hop Frequencies
Alternating frequencies (“hop” frequencies) are the modulating frequencies. The
ranges of hop frequencies depend on the carrier waveform currently selected.
Press HopFreq1, HopFreq2 and HopFreq3 to highlight them and input the
desire frequency values using the numeric keyboard or direction keys and knob
respectively.
Sine: 1μHz to 160MHz
Square: 1μHz to 50MHz
Ramp: 1μHz to 4MHz
Arb: 1μHz to 40MHz