IMPROVEMENTS IN MULTI-CHANNEL GLOBAL GEOSTATIONARY SATELLITE MOBILE RADIO TELEPHONE APPARATUS/MUTLICHANNEL GLOBAL GEOSTATIONARY SATELLITE MOBILE RADIO

摘要

The mobile telephone handset comprises a VFH radio receiver/control Module, 1, a duplex Microwave Mobile radio telephone unit, 2, which is adapted to receive, monitor, process and transmit Microwave telecommunication signals from and to a network of multi-channel global geostationary satellite radio telecommunication stations. The VHF module, 1, and duplex microwave radio telephone unit, 2, are powered by a battery, 3 in order to reduce the power consumption, a normally open, controlled solid state relay switch, 4, is provided between the battery, 3, and the duplex microwave mobile radio telephone unit, 2, together with a signal means, 6, to close the said solid state relay switch, 4, in response to a specific digitally coded VHF radio transmitted signal, 19v, transmitted by the stations. IMAGE