|Fixed Satellite Service
"A radiocommunication service between earth stations at given positions, when one or more
satellites are used; the given position may be a specified fixed point or any fixed point
within specified areas; in some cases this service includes satellite-to-satellite links,
which may also be operated in the inter-satellite service; the fixed-satellite service may
also include feeder links for other space radiocommunication services"
Broadcasting Satellite Service
"A radiocommunication service in which signals transmitted or retransmitted by space
stations are intended for direct reception by the general public"
Mobile Satellite Service
"A radiocommunication service: between mobile earth stations and one or more space
stations, or between space stations used by this service; or between mobile earth stations by
means of one or more space stations. This service may also include feeder links necessary for
Space Operations Service
"A radiocommunication service concerned exclusively with the operation of spacecraft, in
particular space tracking, space telemetry and space telecommand"
Article S5: Detail (example)