Tuner may refer to someone or something which adjusts or configures a mechanical, electronic, or musical device. Electronic Antenna tuner, a device to adjust the resonance frequency of an antenna or transmission line Tuner (electronics), a module or device which separates out one channel from low-amplitude radio-frequency signals for further processing, including, Tuner (radio) Tuner (television) TV tuner card, a device that allows reception of digital television on a computer Musical Elect… (More on Tuner)