LT-4200/-L Satellite Communications System
LT-4200/-L Antenna
LT-3120 Handset
LT-3121 Cradle
LT-4210 Control Unit

LT-4200/-L Satellite Communications System

** Please contact OCENS for current pricing **

The LT-4200 Satellite Communications System (Iridium Certus® 200) is a maritime satellite communication product from Lars Thrane A/S. The LT-4200 system is designed for the professional market (deep sea, fishing, and workboats), but can be used for the leisure market as well. The LT-4200 system meets all standards and certification requirements needed for worldwide maritime satellite communication equipment.


The LT-4200 system has voice and data capabilities with 100% global coverage provided by the Iridium® Certus network. The LT-4200 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 150 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-4200 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-4200 system offers three high quality voice channels, and IP-data up to 176 kbps (up) / 176 kbps (down), making it the perfect satellite communication product on board any vessel.

The LT-4200 system is designed and built for the demanding and rough environment at sea and with an operational temperature range from -40⁰C to +55⁰C (-40⁰F to +131⁰F).


The LT-4200 system is very easy to install. Everything is included in the box to get started with the installation and operating the LT-4200 system. The control unit can be installed using either a bracket mount or flush mount. The antenna unit can be mounted using a pole mount (2.0″ pipe, Ø53.0mm, A4 Stainless). The control unit has a large 4.3″ TFT display, from where the system can be operated with overview and ease. The built-in webserver can be used for service and maintenance.

More than 40 years of experience have been put into the design and construction of the LT-4200 system, with an exceptional performance and specification level.

Key Features

  • LT-4200 Certus® 200 Maritime
  • LT-4200L Certus® 200 LandMobile
  • 3 x high quality voice channels
  • Background IP: up to 176 kbps (up/down)
  • Single antenna cable solution (up to 150 m)
  • Support for external SIP PABX and SIP handsets (up to 8)
  • POTS through Analogue Telephone Adaptors (ATA)
  • High-performance GNSS/GPS receiver
  • Ethernet LAN interface on control unit
  • Large 4.3” TFT display supporting day and night modes
  • Firewall and user authentication for high level of security
  • Configuration of firewall, port forwarding, and remote access
  • PPPoE/JSON protocol for external IP-data management
  • Web server for configuration and maintenance


LT-4210 Control Unit

  • Weight: 658 g (1.45 lbs)
  • Dimensions: 224.0 x 120.0 x 70.0 mm (8.82 x 4.72 x 2.76 in)
  • Temperature, operational: -15°C to +55°C (+5°F to +131°F)
  • IP rating, dust and water: IP32

LT-3120 Handset Unit

  • Weight: 290 g (0.64 lbs)
  • Dimensions: 208.8 x 52.8 x 38.2 mm (8.22 x 2.08 x 1.50 in)
  • Temperature, operational: -15°C to +55°C (+5°F to +131°F)
  • IP rating, dust and water: IP32

LT-4230/-L Antenna Unit

  • Weight: 3.70 kg (8.16 lbs)
  • Dimensions: 238.7 x Ø 224.6 mm (9.40 x Ø 8.84 in)
  • Temperature, operational: -40°C to +55°C (-40°F to +131°F)
  • IP rating, dust and water: IP67

What's in the Box

  • LT-4210 Control Unit
  • LT-3120 Handset
  • LT-3121 Cradle
  • LT-4230/-L Antenna Unit
  • Bracket Mount, Control Unit
  • Power Cable, 3m
  • Stainless steel A4 screws for mounting
  • Pole Mount (1.5" tube) - ($245.00 value)
  • User & Installation Manual
  • Unit Test Sheets

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What Our Customers Are Saying

“One of the most responsive companies I have worked with. Highly appreciate the efforts of making your customers happy."

Dennis Kelley

"When we were in a bad low-pressure system three days ago and trying to make decisions based upon weather, the ability to get information via OCENS programs was greatly reassuring."

Bill Huddleston

Aboard Shearwater III

"We have finally arrived in Australia and the time has come to thank you for your most wonderful service these last ten years. We will reconnect in 2020 when we plan out next cruise."

Rob Dehaan

"Thanks for the excellent post support on my satphone(s) especially when I had a hardware issue and you swapped out my phone on the spot after a month of use- you guys really provide "service" in both on site support and timely replies to E-mail."

Steve and Monika

"...we traveled with 5 other boats this summer, and one other vessel uses OCENS (boat name of Akeeva). We raved about the OCENS service to our other travelers and I expect they will be calling you for help next season."

Phil Chernin

"I really have to admit, after screening all the sources, OCENS has established itself in a unique market position. Very pleased with software and service."

Thomas Gattinger