We would like to advise you of the forthcoming change on 4F2. As anticipated in the previous Service Notification, as part of customer service improvements, Inmarsat engineers will adopt the Sat ID identifier “3” that is currently used by I4F2 (MEAS) on the I6F1 (IOE), at the end of this activity all BGAN services over I4F2 will cease.
The details and timeline of the changes are reported below:
| Activity: | 4F2 Changes |
| Date of Outage: | 19th September 2023 |
| Ocean Region: | MEAS |
| Services Affected: | BGAN/FBB/SBB, M2M, SB‑S 1.0, SB‑S 2.0 |
| Start of Maintenance period: | 08:00 UTC |
| End of Maintenance period: | 15:00 UTC |
| Single or Multiple Outage(s) & Duration(s): | Service outage of up to 15 minutes per terminal, while the terminal is reacquiring services over the overlapping regions. |
| Outage Impact: | Terminals will need to re-register (occurs automatically). Terminal should acquire into overlapping satellite. M2M and Land fixed terminals will lose service on I4F2/MEAS and will require manual repointing to an overlapping satellite. |
| Terminals affected: | All terminals |
| Actions needed by user: | None for the users with steerable antenna (Land Mobile, Aero, Maritime), terminals with fixed antenna pointing will require manual pointing to overlapping satellites. |
