FIXED WIRELESS ACCESS CHANNEL RADIO COMMUNICATION SYSTEM

Radio signals in a radio communications system may be modulated in a variety of fashions; there are a finite number of available individual communications channels for separate sets of parties to communicate with each other. The optimisiation of a transmitting antenna requires knowledge of the channel over which the signal is to be transmitted. A system operable over a channel having characteristics such that parameters of a transmission path can be predicted from received signals is disclosed; said system comprising means for analyzing signals received from said channel and a plurality of signal generation means adapted to vary output in response to said signal analysis.