Broadband Global Area Network
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A Broadband Global Area Network (BGAN), is a form of Satellite internet provided by INMARSAT. The system uses two geostationary satellites with an additional satellite planned to be launched in 2007. The system will then cover all parts of the world except for polar regions.
Downlink speeds are up to 492kb/s and upload speeds slighly lower at 300-400kb/s and there is considerable latency involved due to the distance the signal has to travel. Even when compared with other satellite internet systems bandwidth is extremely expensive at over $1 per megabyte. The advantage of BGAN over such systems is that the terminal is portable and can be set up in any location with a direct view of the satellite.
The BGAN service is heavily based on GSM 3rd generation technology.
[edit] BGAN Terminals
Most terminals are made by Hughes and Thrane and Thrane. These are about the size of a briefcase and can cost anything from $1500 to $5000. They usually have a USB and Ethernet connection for connecting computers to the Internet and some of the more expensive models include a Bluetooth handset for use as a Satellite phone. Most terminals also have an ISDN connection for connecting telephones.
Coverage & Availability
- The BGAN service is currently accessible throughout Europe, Africa, the Middle East and Asia, and has recently been extended through North and South America.
- Extension of coverage to the Pacific area will be beginning in 2007.
