User`s guide

204 Agilent X-Series Signal Generators User’s Guide

Basic Digital Operation (Option 653/655/656/657)

I/Q Modulation

The following factors contribute to the error vector magnitude:

• Differences in amplitude, phase, and delay between the I and Q channels

•DC offsets

The I/Q menu not only enables you to select the I/Q signal source and output, it also provides

adjustments and calibrations to compensate for differences in the I and Q signals.

See also, “Modulating the Carrier Signal” on page 59.