Inmarsat A

Inmarsat A, here aerial coastal earth station

Inmarsat A was a maritime mobile satellite service offered by the communications company Inmarsat .

In 1982, Inmarsat A made it possible for the first time in history to establish radio connections between mobile devices. Inmarsat worked exclusively analogue and offered the following communication options:

• Telephony / voice connection
• fax
• Data transmission (e.g. Internet) with 9.6 - 64 kbit / s.

Inmarsat A was operated with four geostationary satellites , which were positioned over the equator . Inmarsat A did not cover the regions north 70 ° N and south 70 ° S.

Inmarsat A was discontinued on December 31, 2007 at 23:59 UTC . Inmarsat B was its successor .