tuner


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tuner

[′tü·nər]
(electronics)
The portion of a receiver that contains circuits which can be tuned to accept the carrier frequency of the alternating current supplied to the primary, thereby causing the secondary voltage to build up to higher values than would otherwise be obtained.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

tuner

An electronic circuit that locks on to a selected carrier frequency (station, channel). Found in every AM/FM radio, TV, cellphone and wireless receiver, the tuner filters out all but the desired frequency and passes it on to other stages in the device to extract the audio, video or data. See TV tuner.


Try Tuning This Radio!
In 1925, users had to tune three stages on this battery-operated Stewart Warner Radio to obtain a radio station. When they got a good signal, they wrote down the numbers on a log sheet (top) so they could tune in quickly the next time. (Equipment courtesy of Vintage Radio and Communications Museum of Connecticut, www.vrcmct.org)
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References in periodicals archive ?
The new Si479x7 devices are Silicon Labs' first automotive radio tuners supporting the Digital Radio Mondiale (DRM) standard.
Araneta (the piano was a gift to her by the eminent pianist Van Cliburn), the piano was tuned up by Raymond Lim, who is in the league of another much sought-after tuner, Iggy Tuazon.
In order to reconfigure the resonance frequency of an antenna, one can choose to place a tuner at different locations.
Priced at just $99, the TV-U1 TV Tuner when added to the Nuvola NP-1 will provide consumers with a cost-effective alternative to paying for cable or satellite TV by delivering a variety of network channels, said NanoTech CEO Jeff Foley.
The pro-feed T-shape microstrip transmitted current distribution could be adjusted by the angle [theta] at the connection point which is pin coupled to the tuner for matching impedance.
Researchers used magnetic resonance imaging scans to examine how the brain of 19 professional piano tuners differed from 19 people who did not do the job.
CA Mainframe Application Tuner combines the advanced performance analysis and tuning capabilities of TRILOGexpert TriTuneA[R] with the automated performance management of TRILOGexpert APCacents for TriTuneA[R].
As is usually the case in frames when visitors come to town, it was the big-title tuners and family shows that posted the largest gains, with the exception of "Mary Poppins" ($771,761), due to a couple of regular perfs nixed to accommodate a private event.
The iSuppli pointed out that shrinking form factors for LED-based LCD-TVs are expected to prompt some original equipment manufacturers (OEMs) to design the silicon tuner directly into the TV audio/video motherboard.
Singapore, Singapore, November 04, 2010 --(PR.com)-- NuTune, a major supplier of RF Tuner Modules for TV and Set-Top-Box applications and NXP Semiconductors, a global leader in Silicon Tuner technology, announced today that they will cooperate closely to drive the adoption of Silicon Tuner technology into Hybrid TV Applications with Silicon Tuner in CANs.
Grace Digital has surprised us with the unveiling of the Tuner Wireless Radio & Media Player, a new addition to its line of internet radios.
MaxLinear's MxL5007T digital terrestrial tuner measures 5mm x 5mm in a 32-pin QFN package, providing a small, low power front end solution that is suitable for multi-tuner terrestrial STBs and digital TV designs.