Migration I3 to I4 Satellites

The final migration of all services from the Indian Ocean Region (IOR) I-3 to the Europe/Middle East/Asia (EMEA) I-4 has taken place successfully on the 12th of December 2018 (overall process as shown below).

Additional information about the overall migration can be found on the Inmarsat website www.inmarsat.com/i3-i4-services-migration. If you have any questions, please contact Inmarsat Global Customer Support (globalcustomersupport@inmarsat.com), who will be able to assist.

Most Australian customers will have been using the I3 Pacific Ocean region satellite and will have already migrated to I4 APAC around August 2018. Those customers around the WA coast who may have been using IOR as it’s elevation was slightly higher than the POR will now be using the APAC satellite as it covers Australia entirely. This process will generally be managed automatically by the terminal without the need for user intervention. Please visit the website www.inmarsat.com/i3-i4-services-migration for more information and updates. Inmarsat Migration Guide . 

The following Cobham SATCOM products have been affected:

SAILOR and Thrane & Thrane branded Mini-C and Sat-C Mobile Earth Stations (MES) products. In general the Thrane & Thrane and SAILOR branded Sat-C and mini-C Mobile Earth Stations (MES) products are not affected by the switch from I3 to I4 satellites. The products are fully capable of scanning and the new I4 satellites will replace the old I3 satellites after the scanning is made. The MES may be located in an area covered by two satellites before the switch. After the switch the same area may only be covered by one satellite (as is the case in Australia). If the MES is not logged in via the remaining satellite:

  1. Scan and login
    1. Most NON-GMDSS versions will automatically initiate an ocean region scan and login through the remaining satellite. It may be necessary for 3020/2 series (please see below) to be power cycled to initiate a scan otherwise all other versions will do this automatically.
    2. As a matter of regulation all GMDSS versions will NOT automatically initiate an ocean region scan. The user shall initiate a scan from the user interface, which in turn will login through the remaining satellite. Alternatively a power cycle will achieve the same (re-scanning) result.
  1. Data reporting
    1. To ensure continuous data reporting a multi ocean Data Network Identifier (DNID) is required (all Electrotech Units are configured with this as standard).
  1. “Allowed ocean” feature (TT3027X)
    1. If the MES makes use of this feature and is configured to operate via a satellite which is no longer available, it is always possible for the user to force the MES to log in to the remaining satellite, by initiating a scan. This is independent of the MES model and type.

Effected MES units: