Tuner Explained

Tuner may refer to someone or something which adjusts or configures a mechanical, electronic, or musical device.

Electronic

Antenna tuner, an adjustable device that matches the impedance at the end of a transmission line to an antenna or a radio
ATSC tuner, a device that receives digital television broadcasts
Tuner (radio), a module or device which separates out one channel from low-amplitude radio-frequency signals for further processing
TV tuner card, a device that allows reception of television on a computer
TV gateway, or network TV tuner, a device that receives digital television broadcasts and streams them over an IP network

Electronic tuner, a device used by musicians and technicians to measure the pitch of a musical instrument to adjust or correct the input signal to the desired pitch
Tuning mechanisms for stringed instruments, such as tuning pegs, tuning pins, tuning levers, & konso
- Machine head, a flat handle for the worm gear on a string instrument upon which a string is wound
Tuner (band), an electronic rock duo consisting of Pat Mastelotto and Markus Reuter