947
Input/Output
Sense
The external reference is used if a valid signal is sensed at the Ext Ref input. Otherwise the internal
reference is used.
Internal
The internal reference is used.
External
The external reference is used.
Backwards Compatibility Notes: The query [:SENSe]:ROSCillator:SOURce? was a query-only command in
ESA which always returned whichever reference the instrument was using.
The instrument automatically switched to the ext ref if it was present.
In PSA (which had no sensing) the command [:SENSe]:ROSCillator:SOURce
set the reference (INT or EXT), so again its query returned the actual routing.
Thus the query form of this command is 100% backwards compatible with
both instruments.
Initial S/W Revision: Prior to A.02.00
Remote Command: [:SENSe]:ROSCillator:SOURce INTernal|EXTernal
Notes: For PSA compatibility the command form is provided and is directly mapped
to [:SENSe]:ROSCillator:SOURce:TYPE
Initial S/W Revision: Prior to A.02.00
Key Path: Input/Output, Freq Ref In
Example: :ROSC:SOUR:TYPE SENS
Readback: Sense
Initial S/W Revision: Prior to A.02.00
Key Path: Input/Output, Freq Ref In
Example: :ROSC:SOUR:TYPE INT
Readback: Internal
Initial S/W Revision: Prior to A.02.00
Key Path: Input/Output, Freq Ref In
Example: :ROSC:SOUR:TYPE EXT
Readback: External
Initial S/W Revision: Prior to A.02.00