Agilent X-Series Signal Generators SCPI Command Reference
27
Basic Function Commands
Digital Modulation Subsystem—N5172B/82B ([:SOURce])
:DM:EXTernal:INPut:ATTen:AUTO
Supported
N5172B/82B
[:SOURce]:DM:EXTernal:INPut:ATTen:AUTO ON|OFF|1|0
[:SOURce]:DM:EXTernal:INPut:ATTen:AUTO?
This command enables or disables the external I/Q attenuator auto mode. The auto mode will be
switched to manual if the signal generator receives a AUTO OFF or AUTO 0 command.
ON (1)
This choice sets the external I/Q attenuator to auto mode which optimizes the
attenuation setting for the current signal generator settings.
OFF (0)
This choice sets the attenuator to manual mode and holds the attenuator at its
current setting.
Example
:DM:EXT:INP:ATT:AUTO OFF
The preceding example sets the external I/Q attenuator to manual mode.
*RST
1
Key Entry
Modulator Atten Manual Auto
:DM:EXTernal:INPut:ATTen:LEVel
Supported
N5172B/82B
[:SOURce]:DM:EXTernal:INPut:ATTen:LEVel <val><volt_units>
[:SOURce]:DM:EXTernal:INPut:ATTen:LEVel?
This command sets the I/Q signal voltage level at the external I/Q inputs. The voltage level set with
this command is used as the input level setting for automatic attenuation.
Example
:DM:EXT:INP:ATT:LEV 100MV
The preceding example sets the voltage level for the I and Q inputs to 100 millivolts.
*RST
+4.00000000E
001
Range
.05 to 1 Volt
Key Entry
I/Q Output Atten
:DM:EXTernal:INPut:ATTen:LEVel:MEASurement
Supported
N5172B/82B
[:SOURce]:DM:EXTernal:INPut:ATTen:LEVel:MEASurement
This command measures the RMS value of the external I/Q signal. The external input level must be
set to
Measure
.
Key Entry
Do External Input Level Measurement