Dual Arb Subsystem-N5172B/82B ([:Source]:Radio:arb); Baseband:frequency:offset; Baseband:frequency:offset:phase:reset; Clipping - Agilent Technologies N5171B Command Reference Manual

Dual ARB Subsystem–N5172B/82B ([:SOURce]:RADio:ARB)

:BASeband:FREQuency:OFFSet

Supported
N5172B/82B
[:SOURce]:RADio:ARB:BASeband:FREQuency:OFFSet <value><unit>
[:SOURce]:RADio:ARB:BASeband:FREQuency:OFFSet?
This command offsets the baseband frequency relative to the carrier. The feature is useful for moving
the signal such that the carrier feed–through is not in the center.
The X- Series signal generator provides an automatic DAC over–range protection feature, which can be
turned off (factory default has it set to on). When turned on, the protection is active when the offset
value is something other than 0 Hz. It scales down the playing I/Q data by 1/square root of 2. To
turn the protection off, see
*RST 0 Hz
Range –5.0E7 to +5.0E7 Hz
Key Entry Baseband Frequency Offset

:BASeband:FREQuency:OFFSet:PHASe:RESet

Supported N5172B/82B
[:SOURce]:RADio:ARB:BASeband:FREQuency:OFFSet:PHASe:RESet
This command clears the phase accumulation and so zero phase shift.
When the Baseband Frequency Offset is non–zero, the hardware rotator accumulates phase–shift of
the baseband signal. This residual phase remains even after the offset value is returned to zero.
While there is a non–zero residual phase present in the signal, the DAC Over–Range Protection
feature will automatically prevent DAC overrange errors from occurring by scaling the signal down by
1/square root of 2.
Baseband Frequency Offset Phase Reset
Key Entry

:CLIPping

Supported N5172B/82B
NOTE Clipping cannot be undone (i.e. restoring clipping value to 100% will have no effect on a
previously clipped waveform.)
[:SOURce]:RADio:ARB:CLIPping "<file name>",IJQ|IORQ,<value>[,<value>]
This command sets the clipping level of the selected waveform segment to a percentage of its highest
peak.
The variable <value> is expressed in units of percent.
IJQ This choice clips the composite I/Q waveform.
Agilent X-Series Signal Generators SCPI Command Reference
":DOPRotection" on page
Dual ARB Subsystem–N5172B/82B ([:SOURce]:RADio:ARB)
274.
Arb Commands
273