Iridium GMDSS

The Iridium GMDSS service brings reliable, truly global GMDSS services to the market for the first time, giving the maritime industry real choice and making critical safety services available anywhere on the globe.

Lars Thrane LT-3100S GMDSS

Leading the way is the Lars Thrane LT-3100S GMDSS terminal, a truly versatile safety system that not only provides all the required GMDSS distress alerting and voice support but also offers non-safety features in one package.

LT 3100S Iridium GMDSS System
Lars Thrane LT-3100S GMDSS Terminal
LT-3100S Iridium GMDSS Terminal

The LT-3100S GMDSS Terminal from Lars Thrane A/S is the first GMDSS solution to be available for the Iridium GMDSS service. It provides, not only, the key services for GMDSS compliance - such as Distress Alert and Maritime Safety Information (MSI) - but also incorporates non-GMDSS features - non-priority voice, data and SMS - in one small form factor terminal.

Iridium GMDSS Distress Alerting

Activated by the press of a button, distress alerting sends critical data to the Rescue Coordination Centre (RCC).
  • Status

  • Position

  • ID

"Once a distress alert is confirmed, the highest priority voice call is automatically made directly to the RCC."

Iridium GMDSS Safety Voice

Connect to an RCC and other maritime authorities through a call to share additional details about the distress situation.
  • Hydrographic reporting (navigational dangers)

  • Medical advice and assistance

  • High priority calling

Maritime Safety Information

Maritime Safety Information (MSI) is transmitted through and Enhanced Group Call (EGC) service called Iridium SafetyCastSM.
  • Navigational

  • Safety-related

  • Meteorological

Added Value

Additional features and benefits of the LT-3100S terminal and the Iridium GMDSS service:
  • Standard maritime calling and messaging

  • Maritime assistance

  • Shore-to-ship distress calling

  • Distress alert relay

Establishing a New Standard for Safety at Sea
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