External gain – Agilent Technologies Signal Analyzer N9030a User Manual
Page 618
6 RLC Swept SA Measurement Front-Panel & SCPI Reference
Input/Output
Key Path
Input/Output, RF Calibrator
Example
:FEED:AREF REF50
Readback
50 MHz
Initial S/W Revision
Prior to A.02.00
4.8 GHz
Selects the 4.8 GHz internal reference as the input signal.
Key Path
Input/Output, RF Calibrator
Example
:FEED:AREF REF4800
Dependencies
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.
Readback
4.8 GHz
Initial S/W Revision
Prior to A.02.00
Modified at S/W
Revision
A.03.00
Off
Switches the input back to the selected input (RF or I/Q)
Key Path
Input/Output, RF Calibrator
Example
:FEED:AREF OFF
Readback
Off
Initial S/W Revision
Prior to A.02.00
External Gain
Compensates for gain or loss in the measurement system outside the spectrum analyzer. The
External Gain is subtracted from the amplitude readout (or the loss is added to the amplitude
readout). So, the displayed signal level represents the signal level at the output of the device-
under-test, which can be the input of an external device that provides gain or loss.
618
Remote Language Compatibility Measurement Application Reference