Tetra - Tetrapol repeaters enhance the radio coverage of national public safety networks

SEE Telecom designs and manufactures repeaters to enhance the radio coverage of national public safety networks.

Public Safety

SEE Telecom designs and manufactures TETRA repeaters to enhance the radio coverage of national public safety networks. We provide secure and reliable radio coverage for critical communications for the owners, users and emergency services of confined areas such as tunnels and metros, mines, buildings, airports, offshore industry, etc.

Because each installation is unique, SEE Telecom proposes a complete portfolio of solutions with off-air and optical repeaters, advanced technologies as band selective, channel selective, AGC per time slot, squelch, frequency shifting, WDM, remote monitoring HTTP-SNMP. Our public safety equipment can be successfully installed and used all around the globe, as our know-how lets us produce repeaters of all dimensions and technical features. 
SEE Telecom’s indoor coverage solutions can meet all the requirements of any individual public safety network. SEE Telecom provides repeaters that are homologated to enhance public safety networks. SEE Telecom’s compact size multi-channel digital repeater MC-DIRRAC enhances RF coverage in confined areas to enhance the public safety networks with large coverage capability and no near-far effect. The repeaters are easy to install and are operated and controlled by SNMP, SCADA or Ethernet using a web browser.

Also, we produce TETRA repeaters that are customizable to the client’s needs and different state legislations, and they can process any frequencies. Our products meet all the regulatory standards and specifications, such as national public safety and technical requirements.

Country Optimized Products

Astrid - Belgium

Astrid repeaters for Belgian national emergency services operators
SEE Telecom designs and manufactures Tetra repeater systems to enhance radio coverage of Belgian national public safety network ASTRID.
Astrid BelgiumSEE Telecom designs and manufactures Tetra ASTRID repeater systems for the Belgian national ASTRID public safety network. Astrid repeaters enhance the radio coverage inside major confined infrastructures like tunnels, metros, buildings, underground car parks, etc.
The ASTRID Tetra repeater has two RF connectors, one connected to the antenna pointing toward the base station, and the second one is connected to the antenna or radiating cable in a tunnel or building.
The Tetra ASTRID repeater can be ordered with different powers (low, medium, and high), different power supply voltages, with a 4 hours battery backup, and with an LTE modem. Because each installation is unique, SEE Telecom proposes a complete portfolio of solutions with off-air and optical repeaters, advanced technologies as band selective, channel selective, AGC per time slot, squelch, frequency shifting, WDM, remote monitoring HTTP-SNMP.
SEE Telecom's Tetra ASTRID repeater is fully homologated to be used on the Belgian network.
ASTRID is a homologated version of the MC-DIRRAC repeater for the Belgian market. For the generic product, visit the Tetra-Tetrapol page.

C2000 - the Netherlands

C2000 Tetra Repeater for Dutch national public safety networks
SEE Telecom produces C2000 tetra repeaters that enhance the RF coverage according to the Dutch C2000 safety communication requirements.
C2000SEE Telecom manufactures the C2000 version of the MC-DIRRAC multichannel repeaters that enhance the RF coverage according to the Dutch C2000 safety communication requirements.
Our MC-DIRRAC repeaters enhance the radio coverage inside large confined areas such as road tunnels, railway tunnels, metros, buildings, etc.
The MC-DIRRAC C2000 processes up to eight channels, independently, both in frequency and in power, through per channel and per timeslot AGC/ALC functionalities and customizable filtering. Compared to the conventional MC-DIRRAC, it allows connecting the TETRA repeater to 2 different donor antennas, one for the uplink to the BTS and the other for the downlink from the BTS.
C2000 Tetra repeaters are available in optical-to-RF (OMU) and RF-RF (off-air repeater) formats.
C2000 is a homologated version of the MC-DIRRAC repeater for the Dutch market. For the generic product, visit the Tetra-Tetrapol page.

BDBOS - Germany

BDBOS Tetra Repeaters for the German national public safety network
SEE Telecom designs Tetra BDBOS repeater systems that enhance the radio coverage of the German national public safety network.
C2000SEE Telecom's Tetra BDBOS repeater systems enhance the radio coverage of the German national public safety network in major infrastructures and confined areas such as tunnels, metros, buildings, etc.
The Tetra BDBOS repeater comes in the form of a 19-inch rack with 2 RF connectors, one connected to the antenna pointing to the base station and the other connected to antennas or cable radiating in a tunnel or a building.
The BDBOS Tetra repeater can be controlled with different powers (low, medium, and high), different supply voltages, with or without battery backup, and with an LTE modem.
The Tetra BDBOS repeater is approved in most Länder for use on the German network.
BDBOS is a homologated version of the MC-DIRRAC repeater for the German market. For the generic product, visit the Tetra-Tetrapol page.

Renita - Luxembourg

RENITA Tetra Repeater for Luxembourg national public safety network
SEE Telecom manufactures Tetra repeater systems to enhance radio coverage of Luxembourg national public safety networks Renita.
Renardo la vulpo / CC BY-SA (https://creativecommons.org/licenses/by-sa/4.0)The Tetra RENITA repeater has 2 RF connectors, one connected to the antenna pointing toward the base station and one connected to the antennas or radiating cable in a tunnel or building.
Monitoring and control can be done via SNMP, SCADA, via Ethernet using a web browser installed on a PC that gives access to the GUI, or remotely via an optional LTE modem which allows accessing the repeaters GUI from everywhere, using the 4G network. This interface contains an easy configuration page.
Built-in waterproof wall-mounted rack, the repeater can be installed in the harshest environment, indoors or outdoors. The RENITA Tetra repeater can be ordered with different powers (low, medium, and high), different power supply voltages, with or without battery backup, and with an LTE modem.
The Tetra RENITA repeater is fully homologated to be used on the Luxembourg network.
RENITA is a homologated version of the MC-DIRRAC repeater for the Luxembourg market. For the generic product, visit the Tetra-Tetrapol page.
Photo credits : Renardo la vulpo / CC BY-SA

TETRON - Austria

TETRON Tetra Repeater for Austrian national public safety network
SEE Telecom produces TETRON repeaters that are certified by the Austrian radio network authority.
Tetron tetra repeaters for Austrian public safety networkThe TETRON repeaters are used to enhance the coverage of radio systems inside confined infrastructures such as tunnels, metros, large buildings, etc.
In the TETRA-radio business area, we offer state-of-the-art digital air interface and optical DAS systems. The devices are supplied as standard as an IP66 wall-mounted or as a 4U (19-inch) module for cabinet mounting. The TETRON repeaters can be ordered with various power supplies (230VAC, 28VDC, -48VDC), BBU (uninterruptible power supply), as well as monitoring options (GSM / UMTS / LTE modem, Ethernet, potential-free contacts, LED, MONaaS (Monitoring as a Service ...), etc.
In addition, our portfolio includes a large variety of TETRA, VHF, UHF, FM, and DAB + repeater systems designed to enhance radio coverage of national public safety networks and private radio networks of confined infrastructures.

Rakel - Sweden

Rakel Tetra Repeater for Swedish national digital communications system
SEE Telecom's Tetra Rakel repeater systems enhance the radio coverage of the Swedish national digital communications system.
Rakel tetra repeaters Swedish public safety network
SEE Telecom's Tetra Rakel repeater systems enhance the radio coverage of the Swedish national digital communications system in major infrastructures and confined areas such as tunnels, metros, buildings, etc.
Rakel is created for services in charge of civil protection in Sweden: emergency services such as public safety and security, police, fire departments, medical services, etc.
The Rakel Tetra repeaters can be ordered in 19-inch rack or wall-mounted versions. All the options with different powers (low, medium, and high), power supply voltages, battery backup, monitoring, etc. are available.

Rakel is a homologated version of the MC-DIRRAC repeater for the Swedish market.
For the generic product, visit the Tetra-Tetrapol page.

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About see smart®

see smart®

see smart® is a concept that combines technology and innovations.
We provide full integration of the systems for the infrastructure complexes in confined areas such as road tunnels, railway tunnels and metros, offshore platforms, and in-building. Our team provides a full client-centric process for an end-to-end project from designing to installation and maintenance. From now on, the owners, workers, users, and emergency services will benefit from high-quality access to :

  • The national public safety radio network
  • Reliable critical communications
  • Safer construction & maintenance
  • Real-time GPS location
  • Traffic management