
408
Agilent X-Series Signal Generators SCPI Command Reference
Real–Time Commands
Phase Noise Subsystem–Option 432 ([SOURce:RADio:PHASe:NOISe)
:F2:ACTual?
Supported
N5172B/82B with Option 432
[:SOURce]:RADio:PHASe:NOISe:F2:ACTual?
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.
:LMID
Supported
N5172B/82B with Option 432
[:SOURce]:RADio:PHASe:NOISe:LMID <value>
[:SOURce]:RADio: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 (
“:F2” on page 407
). 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
7.00000000E
001
Range
300 to 100
Key Entry
Desired Flat Amplitude (Lmid)
Key Path
Mode
>
More 2 of 2
>
Real-Time Phase Noise Impairment
>
Desired Flat Amplitude (Lmid)
:LMID:ACTual?
Supported
N5172B/82B with Option 432
[:SOURce]:RADio: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.
[:STATe]
Supported
N5172B/82B with Option 432
[:SOURce]:RADio:PHASe:NOISe[:STATe] ON|OFF|1|0
[:SOURce]:RADio: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
.
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