VOLTCRAFT FG-1302 - 3 FSK (3 Frequency Shift Keying)

5.Panel Operation
37
Mod
Type
Load
Parameter 1
Parameter 2
Carrier wave
Figure 5-21: FSK user interface
How to set the parameters of FSK
(1) Press the Mode function key, press the NextPage softkey,then press the
FSK softkey to enter FSK user interface.
(2) Select carrier wave shape:
The carrier wave can be Sine, Square, Ramp, or Arbitrary wave (except
DC). Press , , , or to select a desired carrier wave
shape.
(3) Set carrier wave parameters:
Press the wave shape key of the selected carrier wave to display the
waveform and parameters of the carrier wave. You can change the
parameters of the carrier wave. Press the corresponding carrier waveform
key to return to the modulation mode interface or press the Mode key to
return to the modulation selection mode.
(4) Press the Rate softkey to set the FSK rate. The rate at which the output
frequency shifts between the carrier frequency and the hop frequency is
determined by FSK rate. The range is 2 mHz – 1 MHz.
(5) Set hop frequency:
Press the Hop Freq softkey to set the hop frequency. The carrier wave
frequency shifts to the hop frequency with the specified FSK rate, and
then returns to the original frequency.
3FSK (3 Frequency Shift Keying)
3 Frequency Shift Keying modulation is a modulation technique that shifts the
output signal frequency among three preset frequencies: the carrier frequency