<p>An RF transmitter (200) including means (201) for generating a multi-carrier modulation signal comprising a plurality of sub-carriers, means (309) for modulating an RF carrier signal (c(t)) with the sub-carriers of the multi-carrier modulation signal to produce a modulated signal, a signal splitter (305) to split a signal including the sub-carriers of the multi-carrier modulation signal into a plurality of sub-signals each including a sub-set of the plurality of sub-carriers, a plurality of power amplifiers (203) each operable to amplify a separate one of the sub-signals to produce an amplified sub-signal and an RF power combiner (205) operable to combine the amplified sub-signals for transmission as a combined amplified RF signal. Also described is a method of operation of the transmitter.</p>
