scope:

This ETS specifies the minimum performance parameters for terrestrial fixed services radiocommunications equipment, as given below, for operation in the 13 GHz (12,75 GHz to 13,25 GHz), 15 GHz (14,5 GHz to 15,35 GHz ) and 18 GHz (17,7 GHz to 19,7 GHz) frequency bands. This ETS covers equipment for the transmission of sub-STM-1 digital signals with a VC3 payload capacity. The standardization of sub-STM-1 radio systems for 13 GHz, 15 GHz and 18 GHz bands has been prepared to ensure the compatibility with the existing plesiochronous and the new synchronous systems concerning frequency plans and performance. The application of these digital radio-relay systems is anticipated to be for point-to-point links in local, regional and national networks, mobile base station connections, customer and access links. Consideration has to be given to special requirements of the local and access network, e.g. simple towers with less space for antenna, different network structures with high density nodes.