Agilent X-Series Signal Generators SCPI Command Reference 397
Real–Time Commands
Custom Subsystem–Option 431([:SOURce]:RADio:CUSTom)
This command enables or disables adding real- time additive white gaussian noise (AWGN) to the
carrier modulated by the waveform being played by the dual ARB waveform player.
Example
:RAD:CUST:NOIS ON
The preceding example applies real- time AWGN to the carrier.
*RST 0
Key Entry Real-Time AWGN Off On
:PHASe:NOISe:F1
Supported N5172B/82B with Option 431 and 432
[:SOURce]:RADio:CUSTom:PHASe:NOISe:F1 <value><unit>
[:SOURce]:RADio:CUSTom: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 :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.
*RST +1.00000000E003
Range 0 Hz to 77.500524490 MHz
Key Entry Desired Start Freq (f1)
:PHASe:NOISe:F1:ACTual?
Supported N5172B/82B with Option 431 and 432
[:SOURce]:RADio:CUSTom: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.
:PHASe:NOISe:F2
Supported N5172B/82B with Option 431 and 432
[:SOURce]:RADio:CUSTom:PHASe:NOISe:F2 <value><unit>
[:SOURce]:RADio:CUSTom:PHASe:NOISe:F2?
This command sets the stop 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 :PHASe:NOISe:F1
command). If the value is set less than the start frequency value, the signal generator resets the start
value to equal the stop value.
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