#### [SENSe<Ch>:]ROSCillator...

This subsystem controls the frequency reference oscillator.

Command tree: [SENSe<Chn>:]ROSCillator

:EXTernal

:FREQuency

[:SOURce]

##### [SENSe<Ch>:]ROSCillator[:SOURce] INTernal | EXTernal

Selects the source of the reference oscillator signal.

<Ch> | Channel number. This suffix is ignored in the ROSCillator subsystem and can be set to any value.
INTernal | Select internal 10 MHz reference oscillator.
EXTernal | Select external reference clock. The frequency of the external reference clock is specified via [SENSe<Chn>:]ROSCillator:EXTernal:FREQuency .
*RST value | INTernal
SCPI, Command Types | Confirmed, command or query
Example: | ROSC EXT Select external reference oscillator. ROSC:EXT:FREQ? Query the frequency of the external reference oscillator. The response is 10000000 Hz, i.e. the frequency of the external reference oscillator must be 10 MHz.

##### [SENSe<Ch>:]ROSCillator:EXTernal:FREQuency <numeric_value>

Specifies or queries the frequency of the external reference oscillator.

<Ch> | Channel number. This suffix is ignored in the ROSCillator subsystem and can be set to any value.
<numeric_value> | Frequency of the external reference clock signal. The frequency must be 10 MHz; any other setting is ignored.
Range [def. unit] | 10 MHz [Hz].
*RST value | 10 MHz
SCPI, Command Types | Confirmed, command or query
Example: | See [SENSe<Ch>:]ROSCillator[:SOURce] .