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Session Topic: 3B, Microwave Session

   

Paper Title: An Automated System for Comprehensive Tests of RF Transmitters and Receivers

   

Date & Time: TUESDAY, August 6, 2002

 

8:30 - 10:00am - PARALLEL SESSIONS - SESSION 3

   

Speaker: Grace Zou Hughes Network Systems

Email: gzou@hns.com

   

This paper describes an automated RF test system developed by the RF Test Development Group at Hughes Network Systems. The challenge of this project is to automatically test the functions for both the RF transmitters and receivers in an environmentally controlled thermal chamber, in which the temperature is cycled from –10°C to +60°C with a step of 10°C. The transmitter and receiver functions are tested for EDGE and GMSK modulation schemes. This system utilizes TestStand Software developed by National Instrument Inc. Software modules which are organized in the TestStand sequence are written in Labwindows and LabVIEWTM. The tested transmitter functions include the Mean Carrier Power, EVM, Switching Transients, and Modulation Spectrum. The tested receiver functions include the Receiver Sensitivity on the main and diverse channels.

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