Remote Control Commands > SOURce Subsystem > SOURce:ROSCillator Subsystem > [:SOURce]:ROSCillator:SOURce
[:SOURce]:ROSCillator:SOURce <Source>

Selects the reference frequency source.

Parameters:
<Source>
INTernal| EXTernal| ELOop
INTernal

The internal reference oscillator is used.

EXTernal

An external reference signal is used. It must be input at the REF IN connector at the rear of the instrument.

The instrument is informed of the frequency of the external reference signal by means of the command [:SOURce]:ROSCillator:EXTernal:FREQuency.

*RST:---
Example: ROSC:SOUR EXT

Selects the external source.

ROSC:EXT:FREQ 5 MHz

Informs the instrument that the external reference has a frequency of 5 MHz.

Manual operation: See "Source"

 


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