Alc:search:reference:level; Alc:search:span:start - Agilent Technologies N5171B Command Reference Manual

Basic Function Commands
Power Subsystem ([:SOURce]:POWer)
This command sets the reference source used by the power search calibration routine. The reference
source provides a steady state signal during the power search calibration.
RMS This choice uses the I/Q system as the reference source for the power search
calibration. When the power search calibration routine is executing, the I/Q system
provides a DC bias on the I/Q modulator equivalent to the rms value of the
current I/Q data. The rms value is derived from the waveform file header or
calculated using the current I/Q data
FIXed This choice uses the I/Q system as the reference source for the power search
calibration. When FIXed is active, the I/Q system uses a fixed level of 1.0 volt to
provide a DC bias on the I/Q modulator during the power search calibration.
MANual This choice uses the I/Q system as the reference source for the power search
calibration. When MANual is selected, the user can specify the DC bias on the I/Q
modulator during the power search calibration. The level is chosen using the

:ALC:SEARch:REFerence:LEVel

MODulated This choice disables the power search reference source. During the power search
calibration, the current RF output signal is measured to calibrate the output level.
If the output signal is amplitude modulated at a slow rate or is bursted, power
errors can be introduced at the RF output. For CW signals the power search
reference is disabled.
*RST FIXed (With BBG License only.)
Power Search Reference Fixed Mode
Key Entry
Remarks MXG without the BBG license are defaulted to MOD mode.
:ALC:SEARch:REFerence:LEVel
Supported All Models
[:SOURce]:POWer:ALC:SEARch:REFerence:LEVel <value>
[:SOURce]:POWer:ALC:SEARch:REFerence:LEVel?
This command sets the DC bias voltage value for a manual power search.
1.00000000+000
*RST
Range 0 to 1.414 V
Power Search Manual Level
Key Entry

:ALC:SEARch:SPAN:START

Supported All Models
[:SOURce]:POWer:ALC:SEARch:SPAN:START <value><units>
[:SOURce]:POWer:ALC:SEARch:SPAN:START?
This command sets the start frequency for a span power search over a user specified range.
The start frequency has no default value. The start frequency value will be the last value set before
powering off the instrument.
Key Entry Start Frequency
68
command.
Agilent X-Series Signal Generators SCPI Command Reference