LRIT Equipment Suppliers

LRIT equipment is the satellite-based transmitter that ships over 300 GT on international voyages carry under SOLAS Chapter V Regulation 19-1 to report position to their flag administration, port state, and the IMO LRIT Data Centre network. The system runs unattended in the background, polling four times a day at minimum, using Inmarsat C, Iridium, or FleetBroadband as the communication bearer. Long Range Identification and Tracking is not optional equipment - a vessel without a functioning LRIT terminal cannot trade internationally and fails the Safety Radio Certificate at the next class survey.

LRIT equipment suppliers cover the procurement scope for new installations on newbuild tonnage, replacement of end-of-life units on existing vessels, and upgrades when an operator switches Application Service Provider (ASP) or moves from one comm bearer to another. The right partner handles the type-approved terminal supply, the ASP integration paperwork, the conformance test booking, and the documentation chain the flag administration needs to register the unit. The wrong one leaves a vessel detained at the next port call with an inoperative LRIT system on the Safety Radio Certificate.

What an LRIT System Covers Onboard

An LRIT installation on a SOLAS-regulated ship consists of four functional elements working together:

• LRIT terminal - the shipborne equipment that generates and transmits the position report. Most installations run on a dedicated Inmarsat C or Mini-C terminal; some use Iridium short-burst data or FleetBroadband units. The terminal contains a GPS receiver (or interfaces with the vessel's GNSS), a programmable transmission scheduler, and the comm bearer modem.
• Antenna assembly - the satellite antenna mounted with clear sky view, paired with the terminal type. Inmarsat C uses an omnidirectional fleet broadband antenna; Iridium uses a small puck antenna.
• Power supply and backup - main ship power feed plus a dedicated battery backup so the terminal continues reporting during a blackout, as the LRIT performance standard requires.
• ASP-configured firmware - the terminal must be configured by an IMO-recognised Application Service Provider that handles the data flow to the appropriate Data Centre (national, regional, or IMSO international).

Every element is listed on the vessel's LRIT conformance test report and on the Safety Radio Certificate that the flag state issues against the GMDSS scope.

Type Approval and Performance Standards

LRIT equipment carries a defined regulatory pedigree. IMO Resolution MSC.263(84) sets the performance standard the terminal has to meet - reporting interval programmable from 15 minutes to 6 hours, four reports per day minimum, ability to switch off only when the vessel master authorises it under specific operational conditions. IMO Resolution MSC.298(87) covers the data exchange and Data Centre architecture. The International Mobile Satellite Organization (IMSO) audits the technical and operational performance of the entire LRIT system and acts as the LRIT Coordinator. Type-approved LRIT terminals carry certificates from IACS member class societies and flag administrations - DNV, ABS, Lloyd's Register, Bureau Veritas, ClassNK, RINA, KR, CCS, plus non-IACS bodies covering specific flag scope. Equipment without verified type approval is a fast track to Safety Radio Certificate suspension at the next periodical survey.

Comm Bearer Choice - Inmarsat C, Iridium, or FleetBroadband

The bearer decision sits at the centre of LRIT equipment selection. Inmarsat C and Mini-C remain the dominant choice across commercial tonnage - the terminal is GMDSS-classified, the antenna is small and omnidirectional, the running cost per LRIT report is low, and the network coverage covers all sea areas A1 through A4 except polar regions above 76°N/S. Iridium covers the polar gaps with true pole-to-pole coverage, which matters for tonnage trading the Northern Sea Route, the Northwest Passage, or Antarctic operations. FleetBroadband terminals deliver LRIT alongside broadband data services on units that already carry an FBB installation for crew connectivity and operational data. The bearer choice drives the terminal choice, the antenna footprint on the mast, the running cost per voyage, and the ASP relationship that handles the data flow. For Iridium-based and FleetBroadband installations on vessels operating polar routes, the bearer-specific equipment scope is part of the upfront specification.

Brand Landscape - KONGSBERG, COBHAM SATCOM, JRC, Furuno, martek MARINE

The shipborne LRIT terminal market is concentrated around a defined OEM population. COBHAM SATCOM holds the dominant position with the SAILOR 6110 Mini-C GMDSS terminal that doubles as an LRIT transmitter on Inmarsat C bearer - the de facto standard on commercial cargo and tanker tonnage. KONGSBERG covers the satellite communication and tracking scope across its Maritime portfolio with Inmarsat C terminals and integrated bridge equipment that includes LRIT reporting. JRC (Japan Radio Co.) supplies the JUE-87 Inmarsat C terminal and related GMDSS / LRIT scope on Japanese-built tonnage and across Asian fleets. Furuno Felcom 18/19 Inmarsat C terminals cover the LRIT scope alongside GMDSS messaging. martek MARINE supplies LRIT terminals (iLRIT product line) on Iridium bearer for polar and small-vessel scope. BlueTraker covers LRIT and SSAS combined products on Iridium bearer. Aqua Marine Electronics, Thales (defunct legacy fleet support), and Navico cover supplemental and legacy scope. PoleStar Global is the dominant LRIT Application Service Provider rather than a terminal manufacturer - the ASP layer sits separately from the equipment supplier scope.

Newbuild Installation vs Replacement on Trading Vessels

Two procurement scenarios drive most LRIT equipment buying. Newbuild installation - the LRIT terminal is specified in the GMDSS / radio installation drawing during the shipyard outfit phase, integrated with the bridge alarm system, fed from the main switchboard with battery backup, and registered with the chosen ASP before the conformance test that the flag administration witnesses at delivery. Replacement on existing vessels - end-of-life terminals on Inmarsat C bearer that have aged out (terminal hardware service life typically 10 to 15 years), units that fail conformance test on annual or unscheduled basis, or operator-driven swap when the vessel changes flag, ASP, or comm bearer. Replacement procurement runs against a tight operational window: the terminal arrives in stock, the marine electronics technician installs it during a port call, the new unit is configured by the ASP, and a witnessed conformance test confirms reporting to the Data Centre before the vessel sails. For component-level replacement parts on existing systems - antennas, modems, GPS receivers, power supplies - LRIT spare parts suppliers cover that scope rather than complete terminal replacement.

Selecting an LRIT Equipment Supplier

When you shortlist LRIT equipment suppliers, weigh the structural evidence on each profile rather than the marketing surface:

• Type approval matched to flag and class - IMO MSC.263(84) performance standard compliance, IACS member type approval certificate matched to vessel class registry, flag administration acceptance of the specific terminal model. Certificate copies should ship with every unit delivered.
• ASP integration relationships - the supplier should have established working relationships with IMO-recognised Application Service Providers (PoleStar, CLS Group, Inmarsat LRIT ASP, regional ASPs) so the terminal arrives pre-registered or with the documentation needed for fast ASP onboarding.
• Comm bearer scope matched to trading area - Inmarsat C for general international scope, Iridium for polar routes, FleetBroadband for tonnage with existing broadband infrastructure. A supplier that only covers one bearer narrows the fleet procurement scope.
• Conformance test coordination - the supplier coordinates the witnessed conformance test with the flag administration's recognised test laboratory or class surveyor, so the post-installation test fits the vessel's port schedule rather than waiting on third-party booking.
• Regional service network - authorised marine electronics technicians in the ports the vessel calls who can install, commission, and troubleshoot the terminal under tight operational windows.

LRIT equipment suppliers worth shortlisting deliver type-approved terminals matched to the vessel's flag and class, comm bearer scope matched to the trading pattern, ASP integration that supports fast registration, witnessed conformance test coordination, and the regional service network that keeps the terminal in compliance across the vessel's life. Annual conformance testing, system certification, and post-installation commissioning sit with LRIT service providers and conformance test companies, who handle the recurring scope that keeps the terminal valid on the Safety Radio Certificate year over year.