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An Icom IC-R5 hand-held scannerA GMRS radio that also has scanning capabilities
A scanner (also referred to as a radio scanner) is a radio receiver that can automatically tune, or scan, two or more discrete frequencies, stopping when it finds a signal on one of them and then continuing to scan other frequencies when the initial transmission ceases.
The term scanner generally refers to a communications receiver that is primarily intended for monitoring VHF and UHF landmobile radio systems, as opposed to, for instance, a receiver used to monitor international shortwave transmissions, although these may be classified as scanners too.
More often than not, these scanners can also tune to different types of modulation as well (AM, FM, SSB, etc.). Early scanners were slow, bulky, and expensive. Today, modern microprocessors have enabled scanners to store thousands of channels and monitor hundreds of channels per second. Recent models can follow trunked radio systems and decode APCO-P25 digital transmissions. Both hand held and desktop models are available. Scanners are often used to monitor police, fire and emergency medical services. Radio scanning also serves an important role in the fields of journalism and crime investigation, as well as a hobby for many people around the world.
A scanner (also referred to as a radioscanner) is a radio receiver that can automatically tune, or scan, two or more discrete frequencies, stopping when...
Look up scanner in Wiktionary, the free dictionary. Scanner may refer to: Scanner (radio), for searching for and receiving radio broadcasts Scanner, a rotating...
to listen to emergency services radios and police radios. Additionally, there are prohibitions on certain radioscanner devices. In Germany, it is illegal...
receivers, two-way radios, citizens band radios, shortwave radios, ham radios, scanners, weather radios and airband and marine VHF radios. Bone Fone – was...
FM. Usually a radioscanner or a dedicated weather radio receiver is needed for listening, although in some locations a weather radio broadcast may be...
frequencies. Many radios today treat talkgroups as if they were frequencies, since they behave like such. For example, on a radioscanner it is very common...
or barcode scanner is an optical scanner that can read printed barcodes and send the data they contain to computer. Like a flatbed scanner, it consists...
theft. While searching his vehicle and apartment, policemen found a radioscanner, a police jacket, lock-picking tools and a fake Tennessee driver's license...
short range half-duplex two-way radio. Scanner - a receiver that continuously monitors multiple frequencies or radio channels by stepping through the...
addition to television satellite equipment, mobile radios, advanced marine electronics and radioscanners (the latter under BearCat brand). In Europe, it...
more difficult to monitor via radioscanner than conventional systems; however, larger manufacturers of radioscanners have introduced models that, with...
scanners use non-ionizing electromagnetic radiation similar to that used by wireless data transmitters, in the extremely high frequency (EHF) radio band...
signals. Squelch is used in two-way radios and VHF/UHF radioscanners to eliminate the sound of noise when the radio is not receiving a desired transmission...
now include equipment for radio amateurs, pilots, maritime applications, land mobile professional applications and radioscanner enthusiasts. Its headquarters...
obsolete because their frequencies are easily heard on practically any radioscanner. Advanced models began to use voice inversion as a basic form of scrambling...
Service-Metro". Archived from the original on 2008-12-18. Retrieved 2009-04-16. "The one-stop shop for DFES information - WA RadioScanner Users' Group"....
A Scanner Darkly is a science fiction novel by American writer Philip K. Dick, published in 1977. The semi-autobiographical story is set in a dystopian...
A supermarket scanner moment is a political gaffe in which a politician is portrayed as out-of-touch with everyday affairs. The term derives from a 1992...
search. Police claim Madison and a co-defendant used computers and a radioscanner to track police movements and then passed on that information to protesters...
cordless telephones could be picked up with a simple radioscanner or sometimes even a domestic radio. Widespread digital spread spectrum technology and...
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