262 Agilent X-Series Signal Generators SCPI Command Reference
Arb Commands
Dmodulation Subsystem–N5172B/82B with Option 431 ([:SOURce]:RADio:DMODulation:ARB)
This query returns the actual f2 in use with the current set of desired values. This value may or may
not vary if the desired f2 value is changed, based on the capabilities of the hardware.
:PHASe:NOISe:LMID
Supported N5172B/82B with Option 431 and 432
[:SOURce]:RADio:DMODulation:ARB:PHASe:NOISe:LMID <value>
[:SOURce]:RADio:DMODulation:ARB:PHASe:NOISe:LMID?
This command sets the level amplitude of the flat area for the phase noise impairment. This phase
noise is added to the base phase noise of the signal generator.
The signal generator has an automatic DAC over- range protection feature that is always on for this
subsystem.
For more information on the phase noise impairment option, see the User’s Guide.
NOTE The amplitude range varies depending on the f2 value (“:PHASe:NOISe:F2” on page 261). As
f2 increases in value, the range for Lmid decreases. If the current Lmid setting is too high
for the new f2 value, the signal generator changes the Lmid value and generates an error.
The range values are expressed in units of dBc/Hz.
*RST 7.00000000E001
Range 300 to 100 dBc/Hz
Key Entry Desired Flat Amplitude (Lmid)
:PHASe:NOISe:LMID:ACTual?
Supported N5172B/82B with Option 431 and 432
[:SOURce]:RADio:DMODulation:ARB:PHASe:NOISe:LMID:ACTual?
This query returns the actual Lmid 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 Lmid is varied, based on the
capabilities of the hardware.
:PHASe:NOISe[:STATe]
Supported N5172B/82B with Option 431 and 432
[:SOURce]:RADio:DMODulation:ARB:PHASe:NOISe[:STATe] ON|OFF|1|0
[:SOURce]:RADio:DMODulation:ARB: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.
*RST 0
Key Entry Phase Noise Off On
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