Satellite Radio: Business is Booming
Proposed Mobile - Satellite Systems Will Offer Users a Wide
Range of Services
Offering "truly universal communications" to users wherever
they may be, mobile satellite systems (MSAT) are expected to
be in operation as early as 1987.
The FCC has already released 8 MHz of spectrum in the 800-MHz
band for land-mobile satellite services. Those planning to build
and operate the systems claim they will be able to provide communications
anywhere--land, sea or in the air.
Users who take advantage of the developing MSAT systems will
be offered telephone service in thinly populated areas (thin
routes) where hard-wire systems are impractical.
Users will be offered data transmission from remote arewas for
geophysical exploration, oil and gas service industries; mobile-radio
telephone service including cellular interpretability for roamers;
emergency communications; remote control and monitoring services;
coast-to-coast position location and surveillance; alphanumeric
messaging; dispatch and paging services; and gateway-to-gateway
fixed services using backhaul links.
Orbiting geostationary satellites would become extension of
ground-based communications systems. The concept is viewed as
an extension of the terrestrial cellular-mobile communications
The proposed systems would use large-aperture antennas and multiple
spot beams to provide mobile communications and radio termination
services to users that cannot be economically systems.