There is an increasing emphasis to extend the services available on fixed telecommunication networks to the mobile user. One area of the RACE 1043 project examined the possibility of universal mobile services within future integrated broadband communications networks. Essential to the feasibility of such a scheme is an understanding of the wideband characteristics of the radio channel. The article describes the results of a wideband channel sounding programme conducted at 39 and 60 GHz, together with a channel-modelling exercise based on these measurements, aimed at producing a statistical model of the wide band millimetric channel.