User`s guide

4-206 Agilent E6432A Microwave Synthesizer User’s Guide

HPE6432_SetQAttenuation

ViStatus HPE6432_SetQAttenuation (ViSession

instrumentHandle, ViUInt16 qAttenuation);

Purpose

This function sets the level of Q Attenuation that is used to reduce the

level of the signal being applied to the mixer located within the I/Q

modulator circuitry. This attenuator can reduce the signal level in 2 dB

steps and can be adjusted for up to 12 dB of attenuation.

Changes made to Q Attenuation should also be made to I Attenuation.

Usually the I and Q signal paths will have the same gain although they

are individually adjustable.

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.

qAttenuation

Variable Type ViUInt16

This parameter specifies a value for Q Attenuation.

Allowable values: 0, 2, 4, 6, 8, 10, 12

Return Value

This parameter reports the return status of this function.

To obtain further information about the status that is returned, call the

Error Message function or refer to “Error-Code and Fail-Code

Messages” on page 3-93.