RIGOL
© 2006 RIGOL Technologies, Inc
User’s Guide for DG2000 Series
3-12
Example 9: To Generate an FSK Waveform
How to generate a FSK Waveform with FSK Rate of 200Hz, the Carrier Wave is a Sine
Wave with 10 kHz Frequency, and the hop Frequency is 800 Hz.
The operation steps:
1.
Choose the Carrier Function:
Press Sine, and choose the Sine Waveform as the Carrier Function.
The default setting of the Source is Internal.
2.
Set the Frequency, Amplitude and Offset.
(1)
Press Period/Freq and choose Freq which will display in reverse color.
Enter “10” from the keypad and choose the unit “kHz” to set the Frequency
as 10 kHz.
(2)
Press Ampl/HiLev and choose Ampl which will display in reverse color.
Enter “2” from the keypad and choose the unit “V
pp
” to set the Amplitude as
2V
pp.
(3)
Press Offset/LoLev and choose Offset which will display in reverse
color. Enter “0” from the keypad and choose the unit “V
dc
” to set the Offset
as 0 V
dc
.
3.
Set the Modulation Type FSK.
Press Mod
Æ
Type
Æ
FSK , choose FSK. Please notice that the message shown
on the top left side of the screen is “FSK”.
4.
Set the FSK Rate
Press FSKRate , use the keypad to enter “200”, choose the unit “Hz”, setting the
FSK Rate as 200Hz.
5.
Set the Hop Frequency
Press HopFreq , use the keypad to enter “800”, choose the unit “Hz”, setting the
Hop Frequency as 800Hz.
At this time, the instrument generates the specified FSK waveform. The
Waveform is shown in figure 3-10.
