FM Broadcasting Transmitters with Four power Amplifiers can function at RF frequency range of 87.5 MHz to 108 MHz in 10kHz steps. These FM Broadcasting Transmitters are provided with one pre-amplifier or IPA with one switching power supply and integrated exciter or controller. These FM Broadcasting Transmitters are fitted with four power amplifiers with three switching power supplies. FM Broadcasting Transmitters with Four power Amplifiers are featured with integrated analog FM exciter using direct-to channel digital modulation.