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Agilent X-Series Signal Generators SCPI Command Reference
Digital Signal Interface Module Commands
Digital Subsystem—Option 003 and 004 ([:SOURce])
In the CARRier control mode, this will adjust the carrier power once for the specified total noise
power level, after which the total noise power could change if any noise parameters are adjusted or
the carrier power is adjusted. See also
:DIGital:DATA:INPut:NOISe:POWer:CONTrol[:MODE]
command.
Range
The range varies based on the bounds of the total power that results from the
noise settings.
Default
The appropriate value given the current total power and the current Carrier to
Noise (C/N).
Key Entry
Total Noise Power
:DIGital:DATA:INPut:PHASe:NOISe:F1
Supported
N5172B/82B with option 004
:DIGital:DATA:INPut:PHASe:NOISe:F1 <value><unit>
:DIGital:DATA:INPut:PHASe:NOISe:F1?
This command sets the start frequency value of the flat area for the phase noise impairment.
Ensure that this value is less than or equal to the stop frequency value (see the
:DIGital:DATA:INPut:PHASe:NOISe:F2
command). If the value is set greater than the stop frequency
value, the signal generator resets the stop value to equal the start value.
The actual value may vary logarithmically depending on the value of the stop frequency. This
behavior is more noticeable at higher frequency values. For more information, see the
User’s Guide
.
NOTE
The phase noise is added to the base phase noise of the instrument.
*RST
+1.00000000E
003
Range
0 Hz to 77.500524490 MHz
Key Entry
Desired Start Freq (f1)
:DIGital:DATA:INPut:PHASe:NOISe:F1:ACTual?
Supported
N5172B/82B with option 004
:DIGital:DATA:INPut:PHASe:NOISe:F1:ACTual?
This SCPI command returns the actual f1 in use with the current set of desired values. This value
may vary if the desired f2 value is changed, and may or may not vary when f1 is varied, based on
the capabilities of the hardware.
*RST
+1.00000000E
003
Range
0 Hz to 77.500524490 MHz
Key Entry
Desired Start Freq (f1)
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