Public Safety

SEE 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.

SEE 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.

SEE 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.

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.

The 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.