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About: Multi-band device     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Whole100003553, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: yago:WikicatMobilePhonesyago:Artifact100021939yago:CellularTelephone102992529yago:ElectronicEquipment103278248yago:Equipment103294048yago:Instrumentality103575240yago:Object100002684yago:PhysicalEntity100001930yago:Radiotelephone104044498deviceyago:Telephone104401088yago:Whole100003553 New Facet based on Instances of this Class

In telecommunications, a multi-band device (including (2) dual-band, (3) tri-band, (4) quad-band and (5) penta-band devices) is a communication device (especially a mobile phone) that supports multiple radio frequency bands. All devices which have more than one channel use multiple frequencies; a band however is a group of frequencies containing many channels. Multiple bands in mobile devices support roaming between different regions where different standards are used for mobile telephone services. Where the bands are widely separated in frequency, parallel transmit and receive signal path circuits must be provided, which increases the cost, complexity and power demand of multi-band devices.