Tuner (electronics)

Tuner (electronics)

A tuner is a circuit module or free-standing equipment which detects radio-frequency (RF) signals usually of low amplitude and amplifies them and converts them to a form suitable for further processing.

* A radio tuner receives radio broadcasts and converts them into audio-frequency signals which can be fed into an amplifier driving a loudspeaker. FM tuner, AM tuner, DAB tuner, etc. are types of radio tuner dealing with transmissions using different methods of modulation. The term "tuner" is used both for part of a radio receiver which also contains an amplifier section and for a boxed piece of equipment to be connected to a separate amplifier.

* A television tuner converts an RF television transmission into audio and video signals which can be further processed to produce sound and a picture. Different tuners are used for different television standards such as PAL, NTSC, ATSC, SECAM, DVB-C, DVB-T, T-DMB, open cable. For example, as the United States switches off its NTSC analog television services in 2009, ATSC tuners will be used to convert existing analog receivers for over-the-air reception.


Wikimedia Foundation. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Tuner — may refer to: * Someone or something which adjusts or configures a mechanical, electronic, or musical device * Antenna tuner, a device to adjust the resonance frequency of an antenna or transmission line * Electronic tuner, a device used by… …   Wikipedia

  • Electronics — refers to the flow of charge (moving electrons) through nonmetal conductors (mainly semiconductors), whereas electrical refers to the flow of charge through metal conductors. For example, flow of charge through silicon, which is not a metal,… …   Wikipedia

  • Electronic tuner — Pocket sized Korg chromatic LCD tuner, with simulated analog indicator needle The term electronic tuner can refer to a number of different things, depending which discipline you wish to study. In the Discipline of radio frequency electronics an… …   Wikipedia

  • Alpine Electronics — Infobox Company company name = Alpine Electronics, Inc. アルパイン株式会社 company company type = Public K.K. (tyo|6816) foundation = Tokyo, Japan (May 10, 1967) location = Shinagawa, Tokyo, Japan key people = Seizo Ishiguro, President CEO revenue =… …   Wikipedia

  • Consumer Electronics Control — (CEC) stellt bei elektronischen Consumergeräten komponentenübergreifende Kontrollfunktionen wie One Touch Play/Record , System Standby , Preset Transfer etc. zur Verfügung. Die CEC Schnittstelle ist von AV.link als dem bisher in Europa… …   Deutsch Wikipedia

  • List of electronics topics — Alphabetization has been neglected in some parts of this article (the b section in particular). You can help by editing it. This is a list of communications, computers, electronic circuits, fiberoptics, microelectronics, medical electronics,… …   Wikipedia

  • Radio electronics — * For the magazine, see Radio Electronics Radio electronics is the sub field of electrical engineering concerning itself with the class of electronic circuits which receive or transmit radio signals.Typically such circuits must operate at radio… …   Wikipedia

  • Tuned radio frequency receiver — A tuned radio frequency receiver (TRF receiver) is a radio receiver that is usually composed of several tuned radio frequency amplifiers followed by circuits to detect and amplify the audio signal. A 3 stage TRF receiver includes a RF stage, a… …   Wikipedia

  • video tape recorder — ▪ electronics also called  Video Recorder,         electromechanical device that records and reproduces an electronic signal containing audio and video information onto and from magnetic tape. It is commonly used for recording television… …   Universalium

  • Home theater PC — A Mac Mini as a home theater PC showing Apple s stock Front Row interface A Home Theater PC (HTPC) or Media Center appliance is a convergence device that combines some or all the capabilities of a personal computer with a software application… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”