Abstract
The channel bandwidth of terrestrial television broadcasting is 6, 7 and 8MHz in the world. Digital terrestrial broadcasting system ISDB-T in Japan was originally developed as a system suitable for 6MHz bandwidth. But for international standardization, the system was extended to be suitable for 6, 7 and 8MHz bandwidth, and it was recommended in the ITU-R in 2000. This paper describes a multiband ISDB-T transmission system and the results of the laboratory experiments with a prototype receiver. In the AWGN channel, C/N-BER performance is same if the bandwidth is different. In the one multipath wave channel, the prototype receiver can equalize as expected when the multipath delay time is less than guard interval of each bandwidth ISDB-T system.
