Satellite Phone Forum

[TinTinObserver]

I have heard that Inmarsat is going to be moving some satellites around in January 2009. 'Network Optimisation' will also take place, which may mean some frequency changes for active services - most likely to do with BGAN / GAN.

If somebody keeps an eye on the Inmarsat downlinks could he report any significant changes to the forums? Thanks!

[karambabaramba]

Inmarsat has warned Asian users of its Broadband Global Area Network (BGAN) that they will lose some coverage over the next month as the operator repositions three satellites. The coverage gap for Asia will include much of China, most of southeast Asia, Western Australia, and all of Korea until the repositioning is completed tentatively by February 24.

The first phase of the repositioning is already underway, with the F2 satellite being relocated to better cover India and EMEA, Inmarsat's most heavily trafficked area. The repositioning move leaves a strip of the Atlantic Ocean and parts of the coasts of Africa, the UK and Greenland uncovered.

Once that phase is completed by February 7, the next phase will involve moving the F1 satellite to extend coverage in the Asia-Pacific, currently Inmarsat’s biggest BGAN customer base.

Inmarsat’s third I-4 satellite (I-4 F3), launched late last year, went into commercial service January 7, taking over BGAN traffic (including its new FleetBroadband and SwiftBroadband customers for maritime and aeronautical, respectively) from the I-4 F2 satellite. Because the first two I-4 birds were positioned to provide as much coverage as possible until the third satellite was ready, they must now be repositioned to optimize coverage over the land masses they serve and provide better look angles for the terminals.