Agilent Technologies E4438C Przewodnik Instalacji Pobierz pdf (Strona 133)

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.

1 2 ... 128 129 130 131 132 133 134 135 136 137 138 139 140

Brak uwag

Agilent Technologies E4438C Przewodnik Instalacji Strona 133