REMOTE INTERFACE 
307 
Frequency-Shift Keying (FSK) Commands 
FSK Overview 
 
The following is an overview of the steps required to generate an 
FSK modulated waveform.  
Enable FSK 
Modulation 
 
 
Configure Carrier 
 
Select FSK Source 
 
Select FSK HOP 
Frequency 
 
Set FSK Rate 
1.  Turn on FSK modulation using the 
SOURce[1|2|3|3RF]:FSK:STAT ON command. 
2.  Use the APPLy command to select a carrier 
waveform. Alternatively, the FUNC, FREQ, 
AMPl, and DCOffs commands can be used to 
create a carrier waveform with a designated 
frequency, amplitude and offset. 
3.  Select an internal or external modulation source 
using the SOURce[1|2|3|3RF]:FSK:SOUR 
command. 
4.  Set the hop frequency using the 
SOURce[1|2|3|3RF]:FSK:FREQ command.  
5.  Use the SOURce[1|2|3|3RF]: FSK:INT:RATE 
command to set the FSK rate. The FSK rate can 
only be set for internal sources. 
SOURce[1|2|3|3RF]:FSKey:STATe 
 
Turns FSK Modulation on or off. By default FSK 
modulation is off. 
Burst or sweep mode will be disabled if FSK 
modulation is enabled. As only one modulation is 
allowed at any one time, other modulation modes 
will be disabled when FSK modulation is enabled. 
SOURce[1|2|3|3RF]:FSKey:STATe {OFF|ON}