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Agilent X-Series Signal Generators SCPI Command Reference
Arb Commands
Dmodulation Subsystem–N5172B/82B with Option 431 ([:SOURce]:RADio:DMODulation:ARB)
:NOISe:POWer:NOISe:CHANnel?
Supported
N5172B/82B with Option 431 and 403
[:SOURce]:RADio:DMODulation:ARB:NOISe:POWer:NOISe:CHANnel?
The query returns the current noise power across the carrier bandwidth in dBm.
:NOISe:POWer:NOISe:TOTal
Supported
N5172B/82B with Option 431 and 403
[:SOURce]:RADio:DMODulation:ARB:NOISe:POWer:NOISe:TOTal <totalNoisePowerInDbm>
[:SOURce]:RADio:DMODulation:ARB:NOISe:POWer:NOISe:TOTal?
This command sets the current total noise power level if noise is on.
In the NOISe control mode, the total power will be adjusted to achieve the specified total noise
power and the total noise power level will be maintained regardless of changes to the other noise
parameters. A change to the total power will change the total noise power setting appropriately to
maintain the C/N ratio.
In the TOTal control mode, this will adjust the total power once for the specified total noise power
level, after which the total noise power could change if any noise parameters are adjusted or the
total power is adjusted.
In the CARRier control mode, this will adjust the carrier power once for the specified total noise
power level, after which the total noise power could change if any noise parameters are adjusted or
the carrier power is adjusted. See also
:NOISe:POWer:CONTrol[:MODE]
command.
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
Total Noise Power
:NOISe[:STATe]
Supported
N5172B/82B with Option 431 and 403
[:SOURce]:RADio:DMODulation:ARB:NOISe[:STATe] ON|OFF|1|0
[:SOURce]:RADio:DMODulation:ARB:NOISe[:STATe]?
This command enables or disables adding real–time, non–repeating additive white gaussian noise
(AWGN) to the carrier modulated by the waveform being played by the Dual ARB waveform player.
For more information on AWGN, see the
User’s Guide
.
Example
:RAD:ARB:NOIS ON
The preceding example applies real–time AWGN to the carrier.
*RST
0
Key Entry
Real-Time AWGN Off On
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