Field test measurement for 920 MHz transmitter diversity

Field test measurements on 920 MHz transmitter diversity have been undertaken in the Tokyo metropolitan area. The proposed transmitter diversity provides at least an 8 to 10 dB required receiver input level reduction effect for 10¿3 BER under a multipath fading environment. It is confirmed that the transmitter diversity is an effective technique, not only at improving transmission quality, but also at constructing a multitransmitter `simulcast¿ system.