Lars Thrane LT-3100 Iridium Terminal


Lars Thrane LT-3100 Iridium Cmomunications Terminal

  • Get Iridium’s 100% Global coverage along with low cost service for emergency/distress.
  • Send and receive SMS messages to anyone
  • Make and receive satellite phone calls anytime you need
  • Access Satellite Email and Weather services (ie: Predictwind) via Iridium narrowband data
  • Simple Install with compact antenna and integrated screen and handset, no smartphone required
  • Can be integrated with an onboard network and/or PBX system to access data and voice services from elsewhere on the vessel, including ability to place satellite phone calls from a smartphone app over WiFi (3rd party wifi router required)

Lars Thrane LT-3100/4100 Antenna 2in Pipe Mount

Lars Thrane A/S LT-3100/4100 Antenna 2in Pipe/Pole Mount

Lars Thrane LT-3100/4100/4200 Flush Mount

Lars Thrane A/S LT-3100/4100 Flush Mount

Redport Optimizer WXA-223

  • Redport Optimizer WXA-223 (new for 2023) (same functionality as WXA-203 and WXA-213 models but with newer processors and updated simplfied GUI)
  • (NEW) Make satellite phone calls with your smartphone over WiFi!
  • New: Optimizer features a Services Center dashboard to help you easily access and control your network, and a Quick Whitelist feature that lets you whitelist or block access to popular messaging apps including: Facebook Messenger, Instagram Messages, Signal, Timezero, Viber, WeChat and WhatsApp, with a single button.
  • Control your airtime usage
  • Enable satellite optimized email, weather, blogging, tracking, and more!
  • Compatible with CruisersEmail, Xgate, PredictWind, Sailblogs, Wordpress
SKU: LARS-LT-3100 Categories: , Tags: , , , , , ,


Built for Demanding and Rough Environment at Sea

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.

The LT-3100 system has voice and data capabilities with truly global coverage. The LT-3100 system consist of a control unit, handset unit, and antenna unit. A single cable solution 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 in the best possible location, with free line of sight to the satellites.


The LT-3100 system can be used for crew calling or as back-up satellite communication product. The LT-3100 system provides voice, SMS, data, vessel tracking, and other Iridium services with competitive airtime rates, making it the perfect satellite communication product on board any vessel.

Performance – Voice and data capabilities with Truly global coverage

Flexible – A single cable (up to 500 meters) solution connects the control unit with the antenna unit, giving freedom to mount the antenna in the best possible location

Easy Installation – Single Antenna Cable Solution

Voice, SMS, SBD, and Modem Data

High-performance GNSS/GPS Receiver

Bluetooth for Private Area Network (PAN)

Built-in Webserver

Vessel Tracking (SBD, SMS, and E-mail)

Remote Management of Vessel tracking


Key Features:

  • 100% Global Coverage
  • Single antenna cable solution (up to 500 m)
  • Voice, SMS, SBD, and Modem Data (non-priority)
  • Large 4.3″ TFT display on Control Unit
  • Operational temperature range from -40⁰C to +55⁰C (-40⁰F to +131⁰F)


The LT-3100 terminal is very easy to install; the control unit can be installed using either a bracket mount (included) or flush mount (option), and the antenna unit can be mounted using either a pole mount (1.5″ tube) or angle bracket mount (1″ to 2.5″ tube).

Additional information

Weight 15 lbs
Dimensions 30 × 30 × 15 in

Iridium Handheld Airtime