R&S FSL  SOURce Subsystem 
1300.2519.12 6.235  E-11 
SOURce Subsystem 
The SOURce subsystem controls the output signals of the instrument. 
The following subsystem is included: 
• "SOURce:POWer Subsystem" on page 6.235 
Commands of the SOURce subsystem 
– SOURce<1|2>:EXTernal<1|2>:ROSCillator[:SOURce] 
– SOURce:TEMPerature:APRobe? 
SOURce<1|2>:EXTernal<1|2>:ROSCillator[:SOURce] 
 
This command switches between external and internal reference oscillator. 
Parameter 
INTernal | EXTernal 
Example 
SOUR:EXT:ROSC EXT 
Switches to external reference oscillator 
Characteristics 
*RST value: INT 
SCPI: device-specific 
Mode 
all 
 
SOURce:TEMPerature:APRobe? 
 
This command queries the sensor temperature. 
Parameter 
1 (CPU) 
Example 
SOUR:TEMP:APR? 1 
Queries the temperature of the CPU sensor. 
Characteristics 
RST value: - 
SCPI: device-specific 
Mode 
all