Keysight x-series User Reference Manual page 177

Preset
Initial S/W Revision
50 MHz
Selects the 50 MHz internal reference as the input signal.
Key Path
Example
Readback
Initial S/W Revision
4.8 GHz
Selects the 4.8 GHz internal reference as the input signal.
Key Path
Example
Dependencies
Readback
Initial S/W Revision
Modified at S/W Revision
Off
Switches the input back to the selected input (RF or I/Q)
Key Path
Example
Readback
Initial S/W Revision
EMI Receiver Mode Reference
When CALibration:SOURce:STATe? is received, 1 will be returned if any of the references is selected
and 0 if the Calibrator is "Off"
OFF
Prior to A.02.00
Input/Output, RF Calibrator
:FEED:AREF REF50
50 MHz
Prior to A.02.00
Input/Output, RF Calibrator
:FEED:AREF REF4800
The 4.8 GHz internal reference is only available in some models and frequency range options. If the
4.8 GHz reference is not present, the 4.8 GHz softkey will be blanked, and if the REF4800 parameter
is sent, the analyzer will generate an error.
4.8 GHz
Prior to A.02.00
A.03.00
Input/Output, RF Calibrator
:FEED:AREF OFF
Off
Prior to A.02.00
4 Input/Output Functions
Input/Output
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