About Iridium

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From iridium.com:

“The Iridium constellation of 66 cross-linked Low Earth Orbit (LEO) satellites, plus several in-orbit spares, means truly global coverage and real mobility everywhere.

The network is considered a meshed constellation of interconnected, cross-linked satellites so that each satellite “talks” with the other nearby satellites in adjacent orbits.

Unique to Iridium, this architecture provides inherent advantages in performance and reliability over other mobile satellite services providers.”

Iridium operates in the microwave L-band, which means that successful data transmission relies on having an unobstructed line-of-sight view of a satellite. Satellites travel quite quickly - from horizon to horizon in under 10 minutes - so with sensible application design, it is possible to transmit data, even with a heavily obstructed view of the sky.

The Iridium website (www.iridium.com) has more information. Rock Seven has been an Iridium Partner since 2008.

Constellation replacement - Iridium NEXT

It is no secret that the current constellation of satellites is operating well beyond its original design life. That said, they're performing remarkably well, maintaining near-perfect coverage.

Iridium are currently launching a replacement constellation, known as 'Iridium NEXT', which is expected to be fully operational by the end of 2018.

The new constellation fully supports SBD services, and ensures that RockBLOCK will continue to perform reliably for a very long time.

More information on iridium.com