Organization of regional DVB network
Organization of regional DVB network on the basis of “Crypton” equipment by example of Lviv region
Reasons of application:
Coverage area of regional transmitting center – 50-60 km for 2-3 national channels and 15-20 km for other TV-channels. Signal distribution interval is significantly decreased in hilly areas. Microwave transmission lines don’t solve the problem. According to statistics, 60-70% of Ukrainian citizens can receive up to 3-4 TV-channels and the rest of citizens 1-2 TV-channels only.
There is no any wide application for satellite broadcasting reception (high cost of receiving equipment, channels encoding, including Ukrainian channels; lack of regional channels in signal).
Cable networks building is not profitable on the territories with individual building.
The main problems that were solved as a result of the system’s putting into operation:
Delivery of high quality content;
Integration of regional, national and international channels on communicatory level;
Digital television distribution into all the existing cable networks without building head-ends.
Network description:
DVB network is expanded in MITRIS that operates in 10,75-12,5 GHz bandwidth, radiant power for one channel is 50 mw. Distance between transponders is 120 km maximum. System includes: directional transmitter, operator’s center on the basis of “Crypton” equipment, transponders’ network, and individual receiving set. The base devices: – DTV Server Crypton COD881MS and DTV Server Remultiplexer Crypton COD980RMS.
Up to 60 TV-channels have been broadcasted in digital format since autumn 2005.
Conditional Access System allows the subscriber to select and pay for the channels that interest him. Conditional Access modules are realized on SMART-card of the latest generation, allow the system’s version be quickly changed without replacing the subscriber’s receiver and its software as well as encoding equipment at the transmitted side.