DARC is our business
Axentia is a world leading company in supplying and developing equipment, application and turnkey systems for DARC. Axentia's commitment covers all the procedures, products and services needed to create efficient and reliable DARC communication.
By using DARC as the basic technology, a Service Provider will have an outstanding price/performance advantage compared to other technologies. The key features of DARC are:
Real-time - Guaranteed real-time of data being sent. The whole system is designed for sending data with very short delays. |
Availability - Dedicated bandwidth for applications means that you will always get your data transmitted. |
Reliablity - The system is designed for military use with high demands on reliability. |
Mobile - Strong forward error correction coding makes DARC reliable while moving. |
Broadcasting - The same information is transmitted to everyone at the same time. No upper limit on the number of receivers. |
Coverage - FM-networks with nationwide coverage exists all over the world. |
Cost effective - By piggybacking on the existing FM-network infrastructure you get a competitive price performance system. |
DARC – Data Radio Channel, is a broadcasting system based on the already existing FM infrastructure. It allows content providers to transmit data to any place within the coverage of the FM radio network. This use of existing infrastructure leads to low expansion costs.
The DARC signal is a sub-carrier like RDS (Radio Data System), that is inserted in the multiplex signal. The DARC signal does not interfere with the RDS signal nor the audio signals.
Content providers send data to a network server, which distributes the data to the transmitter stations in the network. At the transmitter station, a DARC Encoder creates the modulated signal. The transmitted data is received by DARC receivers and sent, depending on the type of service, to applications on computers or to other equipment.
The gross bit rate in DARC is 16000 bit/s ± 1.6 bit/s. Depending on the strength of the error correction the net bit rate varies between 6.5–9.8 kbit/s.
White Paper - DARC Technology
