HP 24A, 83620A, 22A manual Function Group ALC Menu Map

0ALC

Function Group ALC

Menu Map 1

Description This hardkey accesses the

ALC B# Menu

Coupling Factor

automatic level control (ALC) functions.

Accesses the ALC bandwidth menu.

Specifies the coupling factor of an external coupling device and causes the display to indicate the power at the coupler main output.

Leveling Mode ALCoff Disables the ALC leveling circuits. Relative power level is controlled by means of the level DAC and attenuator. Power is not sensed at any point, and absolute power level is uncalibrated.

Leveling Mode Normal Sets the synthesizer to continuous leveling at the specified leveling point.

Leveling Mode Search

L e v e l i n g P o i n t ExtDet

L e v e l i n g P o i n t I n t e r n a l

The synthesizer activates power search leveling mode. Similar to ALCoff mode, but first automatically searches for the correct modulator setting

so that the desired power level is produced.

Sets the synthesizer to level power externally. A negative detector output must be connected to the EXT ALC input.

Sets the synthesizer to level power internally.

Leveling Point Module Sets the synthesizer to level power at the output of a millimeter-wave module. Either an HP 8349B or 8355X series millimeter-wave source module must be connected to the

SOURCE MODULE INTERFACE.

L e v e l i n g P o i n t PwrMtr Sets the synthesizer to level power at an external power meter. A power meter’s recorder output must be connected to the EXT ALC input.

HP 8360	Operating and Programming Reference A-3
User’s Handbook