The LT‑4100 Iridium Certus® 100 Satellite Communications System is a robust maritime satellite terminal designed for professional and leisure vessels that require reliable global voice and data communications. Offering 100% Iridium network coverage, the system supports two high‑quality voice channels and IP‑data (22 kbps up / 88 kbps down), along with a high‑performance GNSS/GPS receiver, flexible installation with a single coaxial antenna cable, and built‑in Ethernet and web‑based management for easy configuration and maintenance. Perfect for ship‑to‑shore and ship‑to‑ship connectivity in demanding marine environments.
The LT‑4100 Iridium Certus 100 Satellite Communications System is a high‑performance maritime communications solution from Lars Thrane designed to meet modern vessel connectivity needs. Powered by the Iridium® satellite network, this system provides truly global coverage, fulfilling essential communication requirements even in the most remote ocean regions.
Built for demanding marine environments, the LT‑4100 system delivers two high‑quality voice channels and IP‑data services (22 kbps uplink / 88 kbps downlink), making it suitable as a primary communications system on board. The integrated GNSS/GPS receiver enables accurate positioning data, ideal for marine tracking and situational awareness.
Installation is simple and flexible: a single coaxial cable connects the control unit and antenna, and can be extended up to 500 meters to optimize antenna placement—ensuring the best possible line of sight to the Iridium satellite constellation. The control unit also features a large 4.3″ TFT display with day/night modes, an Ethernet LAN interface, and a built‑in web server for system configuration, firewall management, and remote access.
Advanced connectivity options include support for external SIP PABX and SIP handsets (up to 8), and compatibility with POTS through analogue telephone adapters (ATA). Security and network control are enhanced with firewall configuration and user authentication. Designed to perform reliably even in harsh open‑sea conditions, the LT‑4100 system operates across a wide temperature range and is ruggedly built for maritime use.
Whether for commercial vessels, fishing boats, offshore platforms, or leisure yachts, the LT‑4100 Iridium Certus 100 system provides dependable global satellite communications for voice, data, and more.
Iridium Certus® 100 global satellite network coverage with worldwide reach
2 high‑quality voice channels
IP‑data support: 22 kbps uplink / 88 kbps downlink
High‑performance GNSS/GPS receiver included
Single coaxial antenna cable solution (up to 500 m) for flexible installation
Large 4.3″ TFT display with day and night modes
Ethernet LAN interface on control unit for network connectivity
Web server for configuration & maintenance
Support for external SIP PABX and SIP handsets (up to 8)
POTS support via Analogue Telephone Adapters (ATA)
Firewall and user authentication for network security
Rugged design for demanding marine environments
Operational temperature range suitable for offshore conditions
Complete installation kit included (control unit, handset, cradle, antenna, mounts, power cable, manual)
