Radio networks for telecommunication systems, including radio networks for accessing any type of telecommunication networks, whether public or private; radio networks for interconnecting telecommunication subsystems and equipment, including networks interconnecting subsystems for cellular mobile radio telephony, with particular reference to interconnecting radio base stations (called BTS in second generation mobile radio systems and RNC in third-generation mobile radio systems); point to multipoint (PMP) radio systems in the broad sense, i.e. radio systems comprising at least one master station connected via radio link to numerous peripheral stations, the modem modules for implementing the abovementioned peripheral stations, the outdoor modules for implementing the abovementioned peripheral stations