Inmarsat-C/SAT-C airtime enquiries concern compatible maritime messaging equipment and associated service arrangements. SEANAV Marine accepts activation, deactivation and related account enquiries, with the required scope assessed against the installation and vessel requirements.
Inmarsat-C should not be presented as a general broadband internet or ordinary voice service. Where the installation supports required communication functions, continuity must be reviewed before account or equipment changes are made.
Identify the installation and intended request
Provide the vessel name, IMO number, terminal manufacturer and model, current service information and required action. State whether the enquiry concerns a new arrangement, a service transfer, an existing account issue or a terminal-related complaint.
Include relevant service identifiers only through the agreed verification process. The service desk may need additional account information, but passwords and sensitive credentials should not be put in public documents or ordinary enquiry text.
Separate operational messaging from required functions
Explain what the vessel uses the installation for and identify any applicable safety-related dependencies. Do not assume that every terminal configuration supports identical functions or that all services associated with the vessel share one account arrangement.
Ask the service contact to confirm which elements of the request involve account administration, equipment configuration, specialist attendance or other authorised parties. This keeps a subscription change from being mistaken for a complete system-service commitment.
Keep SSAS and LRIT requirements distinct
SSAS concerns ship security alerts, while LRIT concerns vessel identification and position reporting. A vessel’s records may refer to connected or related equipment, but the functions and applicable arrangements should be identified separately.
A broadband replacement or a change of messaging subscription is not proof that security and tracking arrangements remain available. Raise those dependencies explicitly before requesting interruption or deactivation of an existing service.
Confirm timing and completion evidence
Give the requested effective date and any relevant vessel schedule. Ask what records and authorisation are needed and who will confirm that the service change has been completed.
Keep the final confirmation with the vessel’s terminal and account records. If an old account must be closed or transferred, establish who is responsible for that action and any outstanding commercial obligations.
Report faults with useful evidence
For messaging or terminal problems, provide exact displayed messages, affected functions, fault timing and any available history. Describe observations rather than assuming that airtime status is the cause of every equipment indication.
SEANAV can assess whether account review, additional technical information or equipment-specific support is needed. The agreed scope should explain its limits and any separate service requirements.
Frequently Asked Questions
Is Inmarsat-C a general internet subscription?
No. This guide concerns maritime messaging and associated functions on compatible installations, not general-purpose broadband browsing.
Can a SAT-C service be deactivated immediately?
The request must follow applicable account procedures and preserve any required vessel functions. Obtain confirmation of the appropriate continuing arrangement before interruption.
Are SSAS and LRIT the same service?
No. Identify each requirement separately, even if the vessel’s installation or records associate them with related communication equipment.
Request Marine Airtime from SEANAV Marine
Visit the SEANAV marine airtime service page or email service@seanav.org with vessel, terminal, route, usage and requested-action details. India: +91 88508 49050. UAE: +971 585681197. Account changes, compatibility, coverage, pricing and technical support are confirmed for the specific service arrangement.