A 29 GHz radio system for video transmission

A cost-effective 29 GHz microwave radio system which is providing both point-to-multipoint and point-to-point video transmission in the BT network has been rapidly developed. The initial application was to assist in implementation of Racenet which involves distribution of racing information by satellite. The 29 GHz system has been designed to provide compact, low cost equipment, which is unobtrusive and easily installed. For the initial application, the system has a range of up to 1.8 km. However the equipment has subsequently been adapted for point-to-point closed circuit TV applications, providing ranges up to 15 km and up to 10 km for point-to-multipoint applications depending on the geographical region and the availability required. A prototype duplex version of the system has also been shown to transmit video 2 Mbit/s digital signals satisfactorily