Installation guide

Adjustments
I/Q Gain/Offset/Quadrature Calibration
4-41
I/Q Gain/Offset/Quadrature Calibration
Description
This calibration determines the required I/Q gain, offset, and quadrature calibration constants/arrays that
will minimize the I/Q modulation imperfections on the A13 Output. Several calibration constants are
determined and then the I/Q gain, offset, and quadrature DACs are adjusted over frequency to minimize the
static vector modulation errors. The results are stored in the signal generator as calibration arrays.
Required Test Equipment
•None
Procedure
1. Preset the signal generator.
2. Follow the instructions as they appear on the controller’s display.