Satellite Communications

● Inmarsat ● Iridium● Globalstar & Spot● Thuraya● Orbcomm

Images from http://www.gtc-usa.com/satphone/

INMARSATGlobal Coverage

Uplink1626.5 - 1660.5 MHz Downlink 1525.0 - 1559.0 MHz3 Sats High Earth Orbit

IridiumGlobal Coverage

1618.85 to 1626.5 MHz band66 Sats in low earth orbit

GLOBALSTAR (SPOT below)Partial Coverage as shown52 sats in low earth orbit

1610-1610.6 MHz

THURAYA2 satellites1626.5-1660.5 MHz

ORBCOMM29 Low Earth Orbit Satellites137 to 150 MHzData only services