Basic Function Commands 8
Agilent N8211A/N8212A Performance Upconverter Synthetic Instrument Module, 250 kHz to 20 / 40 GHz 263
[:SOURce]:POWer:ALC:SOURce?
Selects an automatic level control (ALC) source. You can select the internal ALC source, an
external detector source, or a millimeter-wave source module.
Example
:POW:ALC:SOUR MMH
The example selects an Agilent 8355x series external millimeter head as the source (the
unit must be connected to the N8211A/N8212A).
*RST INT
:ALC:SOURce:EXTernal:COUPling
Supported All
[:SOURce]:POWer:ALC:SOURce:EXTernal:COUPling <value>DB
[:SOURce]:POWer:ALC:SOURce:EXTernal:COUPling?
Sets the external detector coupling factor. Use this command when DIODe is the selected
ALC source (“:ALC:SOURce" on page 262). (0 to 32 coupling value).
Example
:POW:ALC:SOUR:EXT:COUP 20DB
The example sets the external coupling factor to 20 dB.
*RST +1.60000000E+001
Range −200 dB to 200 dB.
:ALC[:STATe]
Supported All
[:SOURce]:POWer:ALC[:STATe] ON|OFF|1|0
[:SOURce]:POWer:ALC[:STATe]?
Enables or disables the automatic leveling control (ALC) circuit. The purpose of the ALC
circuit is to hold output power at a desired level by adjusting the N8211A/N8212A power
circuits for power drift. Power will drift over time and with changes in temperature.
Example
:POW:ALC ON
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