
Agilent X-Series Signal Generators SCPI Command Reference
293
Arb Commands
Dual ARB Subsystem–N5172B/82B ([:SOURce]:RADio:ARB)
The preceding example enables the direct measurement of the carrier contribution to the total power.
Default
Noise
Key Entry
Noise
|
Carrier
|
Noise
:NOISe:POWer:CARRier
Supported
N5172B/82B with Option 403
[:SOURce]:RADio:ARB:NOISe:POWer:CARRier <carrierPower>
[:SOURce]:RADio:ARB:NOISe:POWer:CARRier?
This command sets the current carrier power level if noise is on.
In the CARRier control mode, the total power will be adjusted to achieve the specified carrier power
and the carrier power level will be maintained regardless of changes to the other noise parameters. A
change to the total power will change the carrier power setting appropriately to maintain the C/N
ratio.
In the TOTal control mode, this will adjust the total power once for the specified carrier power level,
after which the carrier power could change if any noise parameters are adjusted or the total power
is adjusted.
In the NOISe control mode, this will adjust the total noise power once for the specified carrier power
level, after which the carrier power could change if any noise parameters are adjusted or the total
noise power is adjusted. See also
:NOISe:POWer:CONTrol[:MODE]
and
:NOISe:POWer:NOISe:TOTal
commands.
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
Carrier Power
:NOISe:POWer:CONTrol[:MODE]
Supported
N5172B/82B with Option 403
[:SOURce]:RADio:ARB:NOISe:POWer:CONTrol[:MODE]TOTal|CARRier|NOISe
[:SOURce]:RADio:ARB:NOISe:POWer:CONTrol[:MODE]?
This command sets the power control to one of the three following modes:
Total
This is the default mode where the total power and C/N are independent variables
and the carrier power and total noise power are dependent variables set by the
total power, C/N and the rest of the noise settings. The carrier power and total
noise power will change as any noise parameter is adjusted to keep the total
power and the C/N at their last specified values.
Carrier
In this mode the carrier power and C/N are independent variables and the total
power and total noise power are dependent variables set by the carrier power,
C/N and the rest of the noise settings. The total power and total noise power will
change as any noise parameter is adjusted to keep the carrier power and the C/N
at their last specified values.