Mackay News

12.22.05

Inmarsat-A Relocation to alternate Satellite

from Inmarsat

The Inmarsat-A service will be moved from the current Atlantic Ocean Region West (AORW) satellite located at 54 degrees West, to the Pacific East (PACE)* satellite located at 98 degrees West on January 8th 2006 at 14:00 UT.

Users of the Inmarsat-A service in the AORW will therefore need to re-point their antennas in order to continue accessing the service.

The Inmarsat-A service has already transitioned in the Indian Ocean Region (IOR) from 64 degrees East to 109 degrees East. This change took place on 19 February, 2005 at 20:00 UT, and was required as the new I-4 Flight 1 satellite was positioned at the location of the I-3 satellite over IOR.

The planned change, which ONLY affects Inmarsat-A services in the AORW, is a result of Inmarsat needing to position the new I-4 Flight 2 satellite at the location of the current I-3 satellite over AORW.

End User impact:

Inmarsat-A users will need to ensure that their MES (Mobile Earth Station) re-points to the correct satellite.

Some Inmarsat-A MESs may find the satellite automatically. For the non-automatic cases it will be necessary for the operators to initiate a manual re-pointing as per the instructions in their MES operator's manual.

For instructions on antenna positioning please e-mail satserv@mackaycomm.com or service@mackaycomm.com

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