392 Agilent X-Series Signal Generators SCPI Command Reference
Real–Time Commands
Custom Subsystem–Option 431([:SOURce]:RADio:CUSTom)
Refer to “File Name Variables” on page 13 for information on the file name syntax.
:MODulation[:TYPE]
Supported N5172B/82B with Option 431
[:SOURce]:RADio:CUSTom:MODulation[:TYPE] ASK|BPSK|QPSK|UQPSk|IS95QPSK|GRAYQPSK|
OQPSK|IS95OQPSK|P4DQPSK|PSK8|PSK16|D8PSK|EDGE|MSK|FSK2|FSK4|FSK8|FSK16|C4FM|
QAM4|QAM16|QAM32|QAM64|QAM128|QAM256|QAM1024|UIQ|UFSK|VSAQAM16|VSAQAM32|VSAQAM64|
VSAQAM128|VSAQAM256|VSAQAM512|VSAQAM1024
[:SOURce]:RADio:CUSTom:MODulation[:TYPE]?
This command sets the modulation type for the Custom personality.
*RST
P4DQPSK
:NOISe:BANDwidth
Supported N5172B/82B with Option 431 and 403
[:SOURce]:RADio:CUSTom:NOISe:BANDwidth <value><unit>
[:SOURce]:RADio:CUSTom:NOISe:BANDwidth?
This command selects the flat noise bandwidth value of the real–time noise for an ARB
waveform. Typically, this value is set slightly wider than the signal bandwidth. The minimum
increment value is 0.001 Hz.
*RST +1.00000000E+000
Range 1 Hz to 160 MHz (depends on the installed baseband generator option)
Key Entry Noise Bandwidth
:NOISe:CBRate
Supported N5172B/82B with Option 431 and 403
[:SOURce]:RADio:CUSTom:NOISe:CBRate <1bps - 999Mbps>
[:SOURce]:RADio:CUSTom:NOISe:CBRate?
This command sets a value of the carrier bit rate (gross bit rate) for purposes of calculating the
E
b
/N
0
(energy per bit over noise power density at the receiver). When the carrier to noise ratio
format is set to E
b
/N
0
(refer to the :NOISe:CNFormat command), the adjustment of the carrier bit rate
will have an immediate impact on the carrier to noise ratio as specified by E
b
/N
0
. The carrier bit rate
Key Entry ASK BPSK QPSK Unbalanced QPSK IS–95 QPSK Gray Coded QPSK
OQPSK IS–95 OQPSK 4 DQPSK 8PSK 16PSK D8PSK EDGE MSK
2–Lvl FSK 4–Lvl FSK 8–Lvl FSK 16–Lvl FSK C4FM 4QAM 16QAM
32QAM 64QAM 128QAM 256QAM 1024QAM Select User IQ Select User IQ
Select User FSK VSA 16QAM VSA 32QAM VSA 64QAM VSA 128QAM
VSA 256QAM VSA 512QAM VSA 1024QAM