User Guide

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GM500-U1G_A
Hardware Development Guide
3.5. Test Methods for Whole-Set Antenna OTA
Figure below is the diagram of OTA test system of CTIA. The system is mainly composed of test chamber, high-precision
positioning system and its controller, Windows based PC running test software and RF test instruments with automatic test program.
The main RF instruments are integrated RF test equipment, Spectrum Analyzer, Network Analyzer.
The radio equipments, Relay Switch Unit and PC with automatic test software are communicated via GPIB interface.
Figure 3–3 The OTA test system of CTIA