Agilent X-Series Signal Generators SCPI Command Reference 363
Digital Signal Interface Module Commands
Digital Subsystem—Option 003 and 004 ([:SOURce])
Key Entry Desired Flat Amplitude (Lmid)
::DIGital:DATA:INPut:PHASe:NOISe:TRACe? <startFreq:1 - 100MHz>,<stopFreq:1 -
100MHz>,<numSamples:1 - 8192>
Supported N5172B/82B with option 004
:DIGital:DATA:INPut:PHASe:NOISe:TRACe? <startFreq:1 - 100MHz>,<stopFreq:1 -
100MHz>,<numSamples:1 - 8192>
This SCPI query returns the theoretical phase noise amplitude mask applied with the current settings
if the phase noise feature is on. This mask does not take the natural phase noise of the instrument
into account, only the impairment from the phase noise feature. The output is over the start
frequency to the stop frequency for the number of samples specified. The samples are taken at
logarithmic frequency steps and the output is in dBc/Hz.
:DIGital:DATA:INPut:PHASe:NOISe[:STATe]
Supported N5172B/82B with option 004
:DIGital:DATA:INPut:PHASe:NOISe[:STATe] ON|OFF|1|0
:DIGital:DATA:INPut:PHASe:NOISe[:STATe]?
This command turns the phase noise impairment on or off. For more information on the phase noise
impairment option, see the User’s Guide.
The actual performance of the added phase noise can only be determined by examining the graphic
on the front panel or the actual output, as the parameters simply guide the phase noise response.
NOTE The phase noise is added to the base phase noise of the instrument.
*RST Off
Key Entry Phase Noise Off On
:DIGital:DATA:INPut:NOISe:POWer:NOISe:CHANnel
Supported N5172B/82B with option 004
:DIGital:DATA:INPut:NOISe:POWer:NOISe:CHANnel <value>
:DIGital:DATA:INPut:NOISe:POWer:NOISe:CHANnel?
This command sets the current channel noise power level if noise is on. In the "Channel Noise"
control mode, the total power will be adjusted to achieve the specified channel noise power and the
channel noise power level will be maintained regardless of changes to the other noise parameters. A
change to the total power will change the channel noise power setting appropriately to maintain the
C/N ratio.
Range <startFreq> 1 Hz to 100 MHz
<stopFreq> 1 Hz to 100 MHz
<numSamples> 1 to 8192
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