3-6 Practical field trials for digital terrestrial broadcasting : Results of SFN experiments using two stations

Abstract

This paper describes the results of field transmission experiments for fixed and mobile reception using two SFN stations conducted by ARIB in February this year. In the case of optimum transmission timing of two SFN stations, preferable results were obtained. However, in the case of transmission timing for relay station, it was difficult to receive correctly within two SFN stations because delay time from main transmitter to another SFN transmitter become longer than guard interval. Location of relay station, transmission mode etc. must be taken carefully to implement SFN.