Innovative Digital Terrestrial Multimedia Broadcasting System

THE MAIN TECHNICAL PARAMETERS, THE STAGE OF PRODUCT AND TECHNOLOGY DEVELOPMENT

Unlike digital television broadcasting systems (6-7-8 MHz radio channel band), RAVIS is a narrow-band system (100-250 kHz radio channel band), which greatly simplifies mobile reception. In addition, RAVIS allows you to abandon large multiplexes, which is very important for regional broadcasting.

To date, the following works have been completed:

  • algorithms for transmitting and receiving equipment have been developed;
  • models and prototypes of transmitting and receiving devices have been made;
  • laboratory and field tests of broadcasting have been conducted;
  • frequency planning criteria have been developed;
  • experimental broadcasting zones were deployed in Kazan and Izhevsk (to demonstrate the advantages of the system and get experience in building broadcasting networks) of various types - in large and small cities.

What is planned in the future:

  • development of mass multi-standard receivers with support for basic analog and digital broadcasting systems, including RAVIS (AM and FM sound broadcasting, RAVIS, DVB-T/T2, etc.);
  • chips for multi-standard reception can be integrated into conventional, portable and car receivers, smartphones, tablets and laptops;
  • the market of analogue FM broadcasting in the world is quite large (more than 500 million users).