Various apparatuses and methods for high power transmission using multi-tone signals are provided. One example method includes providing, by signal processing circuitry having a plurality of processor outputs, a data stream for each processor output, and modulating each data stream with a carrier tone to generate modulated data streams as incoherent signals. The example method may also include forming a multi-tone signal based on the modulated data streams, and outputting the multi-tone signal on each of the processor outputs for provision, after being amplified by respective amplifiers, to a power combiner for coherent combination of the multi-tone signals by the power combiner and wireless transmission via an antenna.