Our products meet all the regulatory standards and specifications, such as national public safety and technical requirements.

All of HELIOS® public safety digital repeaters are easy to install and are operated and controlled by SNMP, SCADA or Ethernet using a web browser.Īlso, we produce digital TETRA repeaters that are customizable to the client’s needs and different state legislations, and they can process any frequencies due to advantage of SDR technique. HELIOS® Technologies’ compact size and multi-channel digital repeater enhances RF coverage in confined areas to enhance the public safety networks or private radio networks with large coverage capability and no near-far effect. HELIOS® Technologies provides digital TETRA repeaters that are homologated to enhance public safety networks and private radio networks. HELIOS® Technologies’ indoor coverage solutions can meet all the requirements of any individual public safety network or private radio network. Our public safety digital repeaters (BDA) can be successfully installed and used all around the globe, as our know-how lets us produce digital repeaters of all dimensions and technical features. TETRAPOL uses by default strong end-to-end encryption and, as a result, there is no scanner available that can monitor TETRAPOL.Because each installation/project is unique, HELIOS® Technologies proposes a complete portfolio of solutions with digital off-air and optical repeaters, advanced DSP (Digital Signal Processing) technologies as band selective, channel selective, AGC per time slot, squelch, frequency shifting, CPRI transportation, remote monitoring via HTTP-SNMP. There are today 60 TETRAPOL networks deployed or in the process of being deployed in 28 countries. Since 1988, when TETRAPOL was chosen for the world's first implementation of a large-scale digital PMR network (RUBIS, for the French National Gendarmerie), its subsequent success has been unstoppable accross europe and worldwide, being adopted by a wide range of civilian, military, public safety, and other security organisations. Tetrapol uses GMSK modulation instead of the pi/4-QDPSK used by TETRA

TETRAPOL is based on an FDMA (frequency division multiple access) multiplex approach using a narrow-band channel operating at 12.5 kHz. TETRAPOL is an trunking standard developed by EADS Telecom (Formerly MATRA) and is in use primarally in police and military in Europe.

Tetrapol radio