LT-4100 Satellite Communications System


Designed and Built for Sea-service Environment

The LT-4100 Satellite Communications System (Iridium Certus 100) is a maritime satellite communication product from Lars Thrane A/S. The LT-4100 system is designed for the professional market (deep sea, fishing, and workboats), but can be used for the leisure market as well. The LT-4100 system meets all standards and certification requirements needed for worldwide maritime satellite communication equipment. The LT-4100 system has voice and data capabilities with 100% global coverage provided by the Iridium® Network. The LT-4100 system consists of a control unit, antenna unit, handset, and cradle. A single coaxial cable connects the control unit with the antenna unit. Using a standard coaxial cable, up to 500 meters of separation between the units can be obtained, giving freedom to mount the antenna unit in the best possible location, with free line of sight to the satellites.The LT-4100 system can be used as the primary satellite communication product on vessels, covering the basic communication needs in terms of connectivity (ship to ship / ship to shore). The LT-4100 system offers 2 high quality voice channels, and IP-data 22 kbps (up) / 88 kbps (down), making it the perfect satellite communication product on board any vessel

Key Features:
  • 2 x Voice Channels (high quality)
  • IP-data: 22 kbps (up) / 88 kbps (down)
  • Single antenna cable solution (up to 500 m)
  • High-performance GNSS/GPS receiver
  • High quality microphone, speaker, and equalizer for improved audio performance
  • Large 4.3” TFT-LCD display supporting day and night modes
  • Handset included in the box
  • POTS through Analogue Telephone Adaptors (ATA)
  • Ethernet LAN interface on control unit
  • Web server for configuration and maintenance
  • Prepared for Iridium Certus GMDS
  • Firewall and user authentication for high level of security
  • Web server for configuration and maintenance
  • Support external LAN Wi-Fi Access Points
  • Support external SIP PABX and SIP handsets
  • Support OnSatMail (AST) and SkyFile Mail (Marlink)
  • Iridium Mail & Web (iOS, Android) via RedPort Optimizer (GMN)
  • Vessel tracking (SBD, SMS, E-mail)


LT-4100 System


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LT-3100 Satellite Communications System


Designed and Built for Sea-service Environment

The LT-3100 Satellite Communications System is a maritime fixed Iridium satellite phone from Lars Thrane A/S. The LT-3100 system is designed for the professional market (deep sea, fishing, and workboats), but can be used for the leisure market as well. The LT-3100 system meets all standards and certification requirements needed for worldwide maritime satellite communication equipment.

Key Features:
  • Voice, SMS, SBD, and Modem Data
  • 2.4 kbps and 9.6 kbps compressed data
  • Single antenna cable solution (up to 500 m)
  • High-performance GNSS/GPS receiver
  • High quality microphone, speaker, and equalizer for improved audio performance
  • Large 4.3” TFT-LCD display supporting day and night modes
  • Voice prompt audio feedback
  • Firewall and user authentication for high level of security
  • Webserver for configuration and maintenance
  • Support external LAN Wi-Fi Access Points
  • Support external SIP PABX and SIP handsets
  • Support OnSatMail (AST) and SkyFile Mail (Marlink)
  • Iridium Mail & Web (iOS, Android) via RedPort Optimizer (GMN)
  • Vessel tracking (SBD, SMS, E-mail)


LT-3100 System


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LT-1000 NRU Heading Sensor/GNSS/GPS


12 Precision Sensors Built-in

The LT-1000 Navigation Reference Unit (NRU) is a maritime heading sensor with built-in GNSS/GPS receiver from Lars Thrane A/S. The LT-1000 NRU is designed for the leisure as well as the professional maritime markets. The LT-1000 unit meets all standards and certification requirements needed for worldwide maritime navigation equipment.

Key Features:
  • Navigation Reference Unit with 12 precision sensors
  • True heading, magnetic heading, deviation, variation, roll, pitch, UTC time and date, position, satellite information, ground speed, course over ground, air pressure and temperature
  • 72-ch. GNSS (GPS/GLONASS/BeiDou) satellite receiver with SBAS corrHection
  • Standard (figure 8-pattern) and Adaptive deviation calibration algorithm
  • Simultaneously NMEA 0183 and NMEA 2000
  • Configurable NMEA 0183 sentences (enable/disable, talker ID, output rate)
  • Easy configurable NMEA 2000 termination resistor (open or terminated)
  • Easy configurable NMEA 0183 data rate (4800 or 38400 baud)
  • Each unit is factory calibrated and functional tested over temperature prior to shipment
  • Worldwide maritime certification


LT-1000 System


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LT-500 AHRS Compass/Heading Sensor


-13⁰F to +131⁰F - Operational Range

The LT-500 Attitude Heading Reference System (AHRS) unit is a maritime navigation heading sensor / electronic compass from Lars Thrane A/S. The LT-500 AHRS unit is designed for the leisure as well as the professional maritime markets. The LT-500 unit meets all standards and certification requirements needed for worldwide maritime navigation equipment.

Key Features:
  • Attitude Heading Reference System with 11 precision sensors
  • True heading, magnetic heading, deviation, variation, roll, pitch, air pressure, and temperature
  • Display and control buttons for installation and service
  • Simultaneously NMEA 0183 and NMEA 2000 data
  • Configurable NMEA 0183 sentences (enable/disable, talker ID, output rate)
  • Easy configurable NMEA 2000 termination resistor (open or terminated)
  • Easy configurable NMEA 0183 data rate (4800 or 38400 baud)
  • Mount in any orientation without compromising the high performance
  • Each unit is factory calibrated and functional tested over temperature prior to shipment
  • Worldwide maritime certification


LT-500 System


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