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Radio Coverage Solutions

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Maritime Radio Coverage

Maritime Radio Coverage TETRA TETRAPOL GSM UMTS LTE 2G 3G 4G
Activities for maritime transport or offshore industry, telecommunications can be performed by two types of networks: 
  • Offshore in the asence of mobile networks, these communications are necessarily carried out by private and specific infrastructure. To ensure greater reliability, type networks DMR (Digital Mobile Radio) TETRA have emerged. 
  • Near the coast, it is possible to relay the mobile network by a DAS (Distribution Antenna System) from an antenna capture. In cerains cases, DAS can be directly connected to a base station operator if they agree to settle. 

In a merchant ship, a ship or offshore stations, in addition to the base station, a set of DAS (Distribution Antenna System) consists of off-air repeaters and optical repeaters allow for ensure the continuity of communication in all the most confined areas.


Radio Coverage solutions for ferrys and cruise liner

To enable: 
  • passengers to use their mobile phones on board 
  • the crew members communicate with each other via the PMR network 
SELECOM offers complete solutions to shipowners relay and GSM / UMTS / LTE / TETRA / PMR radio coverage inside buildings. 
Adapted to sailing routes near land, the system "Repeater Ferry" is composed of an antenna on the roof capture the ship just feed a DAS (Distribution Antenna System) by coaxial and / or fiber optic cables. 
In the case where the ferry connects two different countries, the switching of the relay operators in country A and country B is GPS Steering respect boundaries. 
Adapted to ships sailing off the system "Repeater Cruiser" is identical to the system "Repeater Ferry" with the difference that the DAS is connected to (the) operator BTS installed in the ship. The interconnection with terrestrial networks is provided by the operator mui itself, usually by a satellite system. 

The intelligent switching controlled by GPS also allows you to switch the repeat mode to satellite mode terrestrial signal.

  Maritime Radio Coverage in the ships TETRA TETRAPOL GSM UMTS LTE 2G 3G 4G

Maritime Radio Coverage in the off-shore stations TETRA TETRAPOL GSM UMTS LTE 2G 3G 4G  

Radio Coverage solutions of off-shore stations

Offshore sites such oil platforms, gas platforms, off-shore windfarms, etc ... are industrial sites where risk-taking is maximal: explosion, bad weather. 
Communications must be as reliable as possible, and no place, even the most confined, should escape radio coverage so that the service is 100% available. 

SELECOM offers coverage solutions in addition to GSM base stations or TETRA adapted to these harsh environments: Sealed boxes, ATEX enclosures.


Radio Coverage Solution of off-shore windfarms

With the development of green energy projects offshore wind farms are growing throughout the world and are becoming increasingly important as the number of turbines from a few dozen a decade ago, the standard is hundred today, and projects in fields 150-250 turbines are planned. 
Metal drums and thick wind, have the distinction of acting as a Farraday cage, and are impervious to electromagnetic waves. 

To enable relaying communications for personnel involved in wind, SELECOM developed with his partner and SEMCO MARITIME a complete system SEMTETRA ™ solution. SEMCO MARITIME is the exclusive distributor of this solution.



Products proposed on this solution:

2G / 3G / 4G

RF-RF Repeater 800/900/1800/2100/2600 GSM/UMTS/LTE
- High Power
- Single Band
- Band Selective
- Digital Smart Filter & Advanced Insulation
- Outdoor IP65 cabinet
- HTTP, SNMP Monitoring
 DataSheet PDF (344 Kb)



Electrical box pre-equipped
- brings together in one place all the electrical circuits and their protection.
- Allows a stabilized power supply for a use requiring a stabilized direct voltage 24 V rescued by batteries
- Installation and commissioning quick and easy service.
 DataSheet PDF (464 Kb)


Cloud-Monitoring VisiOmc™

VISIOMC™ : NMS & OMC for MonitoringVISIOMC™ : NMS & OMC for Monitoring
- Cockpit of GSM, TETRA, Digital TV operators
- Central remote monitoring
- Monitoring server with friendly web interface
- Reachable from anywhere in the world on laptop and smart phone
- Status, reports and statistics edition
- Alerts by email, SMS
- Up to 1 year of log events
 DataSheet PDF (799 Kb)



Micro-Repeater RF-RF TETRA / TETRAPOL 400Micro-Repeater RF-RF TETRA / TETRAPOL 400
- TETRA / TETRAPOL coverage enhancement
- Safety networks
- Small areas
- Autonomous equipment
- Up to +10dBm output power
- Plug & Play
- Gain Limiter
- Wall-mounting
 DataSheet PDF (258 Kb)

Optirep™ System TETRA / TETRAPOL 400 Optirep™ System TETRA / TETRAPOL 400
- TETRA / TETRAPOL coverage enhancement
- Railway, road and waterway tunnels
- Buildings, mountain
- Up to 16 optical outputs(Power: +17, +24, +37 dBm)
- Off-air or TBS reception
- RF Emergency access
- Star and daisy-chain configuration
- IP Monitoring by GPRS
- OMC VisiOmc™
The system includes the optical master and remote repeaters.
 DataSheet PDF (704 Kb)

Catalog TETRA / TETRAPOL RF AccessoriesCatalog TETRA / TETRAPOL RF Accessories
Couplers, Antennas
 DataSheet PDF (1022 Kb)