320
Agilent X-Series Signal Generators SCPI Command Reference
Arb Commands
Multitone Subsystem–N5172B/82B ([:SOURce]:RADio:MTONe:ARB)
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 403
[:SOURce]:RADio:MTONe:ARB:NOISe[:STATe] ON|OFF|1|0
[:SOURce]:RADio:MTONe:ARB:NOISe[:STATe]?
This command enables the Multi- Tone modulation mode.
To configure the AWGN, refer to the following sections located in the multitone subsystem:
•
To set the AWGN noise bandwidth, refer to
“:NOISe:BANDwidth” on page 315
.
•
To set the bandwidth over which the noise power is integrated for calculating the carrier to noise
ratio, refer to
“:NOISe:CBWidth” on page 316
.
•
To set the carrier to noise ratio as the active function, refer to
“:NOISe:CN” on page 316
.
*RST
Off
Key Entry
Real-Time AWGN Off On
:PHASe:NOISe:F1
Supported
N5172B/82B with Option 432
[:SOURce]:RADio:MTONe:ARB:PHASe:NOISe:F1 <value><unit>
[:SOURce]:RADio:MTONe:ARB:PHASe:NOISe:F1?
This command sets the start frequency value of the flat area for the phase noise impairment.
Ensure that this value is less than or equal to the stop frequency value (see
:PHASe:NOISe:F2
). If the
value is set greater than the stop frequency value, the signal generator resets the stop value to equal
the start value.
The actual value may vary logarithmically depending on the value of the stop frequency. This
behavior is more noticeable at higher frequency values. For more information, see the
User’s Guide
.
*RST
+1.00000000E
003
Range
0 Hz to 77.50052449 MHz
Key Entry
Desired Start Freq (f1)