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

Electronic

Antenna tuner An antenna tuner (and any of the names in the list below) is a device that is inserted between a radio transmitter and its antenna; when placed close by the antenna and properly adjusted (tuned) it optimizes power transfer by matching the im ...

, an adjustable device that matches the impedance at the end of a transmission line to an antenna or a radio *

ATSC tuner An ATSC (Advanced Television Systems Committee) tuner, often called an ATSC receiver or HDTV tuner, is a type of television tuner that allows reception of digital television (DTV) television channels that use ATSC standards, as transmitted by tel ...

, a device that receives digital television broadcasts *

Tuner (radio) A tuner is a subsystem that receives radio frequency (RF) transmissions, such as FM broadcasting, and converts the selected carrier frequency and its associated bandwidth into a fixed frequency that is suitable for further processing, usually be ...

, a module or device which separates out one channel from low-amplitude radio-frequency signals for further processing *

TV tuner card A TV tuner card is a kind of television tuner that allows television signals to be received by a computer. Most TV tuners also function as video capture cards, allowing them to record television programs onto a hard disk much like the digital vi ...

, a device that allows reception of television on a computer *

TV gateway A TV gateway (also called network TV tuner) is a television Cable television headend, headend to a network UPnP router that receives live Digital Video Broadcasting, digital video broadcast (DVB) MPEG transport streams (channels) from terrestrial ae ...

, or network TV tuner, a device that receives digital television broadcasts and streams them over an IP network

Musical

Electronic tuner In music, an electronic tuner is a device that detects and displays the pitch of musical notes played on a musical instrument. "Pitch" is the perceived fundamental frequency of a musical note, which is typically measured in Hertz. Simple tune ...

, 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 A variety of methods are used to tune different stringed instruments. Most change the pitch produced when the string is played by adjusting the tension of the strings. A tuning peg in a pegbox is perhaps the most common system. A peg has a g ...

, such as tuning pegs, tuning pins, tuning levers, & konso **

Machine head A machine head (also referred to as a tuning machine, tuner, or gear head) is a geared apparatus for tuning stringed musical instruments by adjusting string tension. Machine heads are used on mandolins, guitars, double basses and others, and ar ...

, a flat handle for the worm gear on a string instrument upon which a string is wound *

Tuner (band) Tuner (also capitalised as TUNER) is an electronic rock duo formed by drummer/programmer Pat Mastelotto (of King Crimson) and touch guitarist Markus Reuter. Tuner has released four albums and also functions as a production team, having produced an ...

, an electronic rock duo consisting of Pat Mastelotto and Markus Reuter

Mechanical

Tuner (car) Car tuning is the modification of a car to optimise it for a different set of performance requirements from those it was originally designed to meet. Most commonly this is higher engine performance and dynamic handling characteristics but cars m ...

, a customized car or hot-rod

Electronic

Musical

Mechanical

See also