Tetra repeater systems enhance radio coverage of Belgian National Public Safety Network ASTRID

SEE Telecom designs and manufactures Tetra repeater systems to enhance radio coverage of Belgian National Public Safety Network ASTRID.

ASTRID Tetra Repeaters

SEE Telecom designs and manufactures Tetra ASTRID repeater systems (BDA – Bi-Directional Amplifiers):
  • To enhance the radio coverage of national public safety network ASTRID in Belgium in major infrastructures like shopping centers, exhibition  halls, convention centers, hospitals, confined areas such as service corridors, tunnels, underground car parks.
 
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 tunnel or building.

Monitoring and control can be done via SNMP, SCADA, via Ethernet using a web browser installed on a PC which 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.

The MC-DIRRAC also has a sum alarm output that can be connected to an external alarm system.
Built-in waterproof wall-mounted rack, the repeater can be installed in the harshest environment, indoors or outdoors.

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 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.

The Tetra ASTRID repeater is full homologated to be used on the Belgian network.
Applications

ASTRID Tetra Network

Coverage enhancement

Confined areas

Tunnels

Metros

Buildings

Warehouses

 

Key features

Bi-directional high power

6.5 MHz bandwidth

Up to 8 channels independently processed

Customizable filtering

AGC/ALC by timeslot

Compact size

High linearity

Monitoring and control via IP

Homologated by ASTRID

 

Benefits

Easy installation

No near-far effect

Large coverage capability

Carriers balancing

Astrid repeaters are available in optical-to-RF (OMU) and RF-RF (off-air repeater) formats. 

OMU consists of a Master station distributing the RF signals to remote units (ORU) with optical transmitters and optical receivers, by optical fibers. These Optical Remote Units (ORU’s) transform the optical signal into RF, amplify it, and then deliver it to the infrastructure at the appropriate power level.

The off-air 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 the infrastructure itself.

Contact our sales team >>>

to enhance the radio coverage of Belgian national public safety network ASTRID
in major infrastructures.