User`s guide

Agilent E6432A Microwave Synthesizer User’s Guide 4-195
HPE6432_SetLevelingPoint
CAUTION If selecting external leveling (EXTERNAL_DETECTOR_1) and a
calibration has not been performed on the external leveling loop
configuration, any sensitive DUT [Device Under Test] is subject to
unknown changes in unknown RF output.
ViStatus HPE6432_SetLevelingPoint (ViSession
instrumentHandle, ViInt16 levelingPoint);
Purpose
This function sets the ALC leveling point while all other instrument
state settings are unaffected.
The ALC leveling point affects the current state as well as the list.
When INTERNAL_DETECTOR is selected, this function allows the
synthesizer to level power at the output of the directional coupler
located inside of the synthesizer.
When EXTERNAL_DETECTOR_1 is selected, this function allows the
synthesizer to level power by accepting an external feedback connection
from a negative-output diode detector. The Ext ALC BNC connector on
the front panel is used for the required signal.
Factory Preset Value: INTERNAL_DETECTOR
Parameter List
instrumentHandle
Variable Type ViSession
This is the ViSession handle that is obtained from the Initialize
function. The instrumentHandle identifies a particular instrument
session.
levelingPoint
Variable Type ViInt16
This parameter specifies the ALC leveling point that is to be used.
Allowable values:
INTERNAL_DETECTOR (Factory Preset Value)
EXTERNAL_DETECTOR_1 (Ext ALC - front panel connector)
Return Value
This return value always returns VI_SUCCESS.