Transmitter Measurements

AN 1312 - Understanding GSM Transmitter Measurementsapplication

Understanding GSM Transmitter Measurements for Base Transceiver Stations and Mobile Stations Application Note 1312

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Table of Contents

1.

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Why measure? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Origin of measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Choosing transmitter measurements . . . . . . . . . . . . . . . . . . . 6 Test phases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Tradeoffs and compromises. . . . . . . . . . . . . . . . . . . . . . . . 7 RF Parametric Transmitter Measurements in GSM . . . . . . . . 8 Phase error and mean frequency error. . . . . . . . . . . . . . . . . . 8