Proposal of new information traffic platforms in UHF band for communication and broadcasting services

In the second half of the twentieth century, the technological environments in communication and broadcasting services have been greatly advanced, and the information services (IS) of the next generation are going to be developed towards the twenty first century. The IS will require broadband, mobile and asymmetrical communications. What media will be suitable for the IS in the future information traffic platforms? In this paper, it is considered that the UHF band used in the existent analog terrestrial TV broadcasting will be suitable for the download channel of the new IS. In order to clarify the validity of using the UHF band, the propagation loss is compared between 470 MHz of UHF TV broadcasting and 2 GHz of IMT-2000. Furthermore, since it is necessary to seamlessly provide the IS not only in outdoor but also in indoor environments, the basic radio propagation is measured in indoor environments