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egoo Knowledge Base
What is DAB Radio?

Digital Audio Broadcasting (DAB), also known as Eureka 147, is a technology for broadcasting of audio using digital radio transmission.

The original objectives of converting to digital transmission were to enable higher fidelity, more stations and more resistance to noise, co-channel interference and multipath than in analogue FM radio. However, in the UK, Denmark, Norway and Switzerland, which are the leading countries with regard to implementing DAB, the vast majority of stereo radio stations on DAB have a lower sound-quality than FM[1][2] due to the bit rate levels used on DAB being too low[3][4]. This assumes that the listener has good reception on both DAB and FM, however, but FM can suffer from fading caused by multipath when the receiver is travelling at high speed which DAB is less prone to. For stationary reception, FM can suffer from hiss when the signal is weak, whereas DAB produces a "bubbling mud" sound when the received signal is too weak for proper decoding.

In November 2006, WorldDMB announced that the DAB system was in the process of being upgraded, and it will adopt the AAC+ audio codec to improve the efficiency of the system and stronger error correction coding to improve the robustness of transmissions. This means there are now two different versions of the DAB system: the current one, developed in the late 1980s, and an upgraded version, which has been named "DAB+". Existing DAB receivers are incompatible with the new DAB+ standard, but receivers that support the new DAB+ standard are expected to be in the shops by summer 2007.

Digital radio in the United Kingdom

Experimental transmissions by the BBC started in 1990 with permanent transmissions covering London in September 1995. In September 1997 the BBC announced its national DAB rollout plans and soon reached 65% coverage. In 2006 the majority of national broadcasters all broadcast on DAB (as well as traditional AM/FM).

The public service broadcaster, the BBC, has been promoting its DAB Digital Radio stations since September 1995 and at present (2006) covers about 88% of the population, including the major motorway network. Progress beyond this figure seems to be slow, leaving some several million of the UK population who still do not know when they will be able to receive DAB. The switch from analogue TV to digital TV (DSO) is imminent, possibly relegating DAB to a lower order of priority. FM will not be switched off when analogue TV is switched off, however, which is a growing misconception.

As of August 2005, the BBC national DAB multiplex contains a number of different services, including Radios 1-5, and digital-only services such as Radio Five Live Sports Extra, 6 Music, 1Xtra and BBC7, as well as an EPG.

The Digital One national commercial multiplex began broadcasts on 15 November 1999 with 69% coverage and since then its DAB network has always been more extensive than the BBC's. It contains eight audio stations, an EPG and an experimental video service for mobile phones which was launched in October 2006. Digital One also developed along with Frontier Silicon a low cost silicon chip used in the majority of receivers and is directly responsible for DAB receiver prices falling below £100 in 2002, and as little as £30 in 2006. As a result of this, DAB portable radios are now outselling their analogue counterparts at the highstreet chain Currys. Digital (formerly Dixons).

In addition to the national services, by the end of 2004 there were 48 local and regional radio multiplexes, providing over 250 commercial and 34 BBC stations. For example, in London there are already more than 51 different digital stations available. Further regional and local multiplexes are being planned by Ofcom, the UK regulator. The UK has by far the largest number of DAB stations broadcasting in the world, the highest numbers of listeners to these services[4], and the lowest average audio quality in the world.

Products Quick finder

Digital Photo Frame   Ink Cartridge
     
Small size Digital Poto Frames   BenQ |BenQ QB10/QC20 ink cartridges
1.1" digital keyring- Black   Canon |Canon BX-3 ink cartridge - Remanufactured original
1.1" digital keyring- Red   Dell |Dell 720,A920 Ink Cartridges
1.4" digital photo frame-Black   HP
    4 x HP21 Black ink cartridges
10.4 inch Digital Photo Frames   2 x HP 21 2 x HP 22 Ink Cartridges
10.4" digital photo frame - Acrylic Black and white   2 x HP 916 + 2 x HP 917 Ink Cartridges
10.4" digital photo frame with 1GB internal memory- Acrylic Black   Replacement HP 363 type inkjet cartridge
10.4" digital photo frame + 1GB internal memory + LED light- Acrylic Black   Lexmark |Lexmark 16 (Black) Lexmark 26 (Colour) Ink Cartridges
10.4" digital photo frame - Acrylic White   Novajet
10.4" digital photo frame - Acrylic Black   Full Set of Novajet EnCAD 600 dpi cartridges
10.4" digital photo frame - Red Wood   8 x Novajet EnCAD 600,700 dpi cartridges
10.4" digital photo frame - Black Wood   4 x Novajet EnCAD 300 dpi cartridges
    Novajet Decoder Chip - for 600, 700 PROe EnCad Printers
12 inch Digital Photo Frames   Novajet Decoder Chip - for 750, 800 PROe EnCad Printers
12" digital photo frame - Acrylic Black Clear   Olivetti
    4 x Olivetti FJ31 Black Ink Cartridges - Brand New
15 inch Digital Photo Frames   4 x Olivetti FPJ20 Black Ink Cartridges
15" digital photo frames - Red Wood   Primera |Primera CD/DVD printing cartridges
15" digital photo frames - Black Wood   Rimage
15" digital photo frames - Natural Wood   Rimage Ink Cartidges - 2 x C8856A + 2 x C8857A
    Rimage Ink Cartidges - 20 x C8856A + 20 x C8857A
Portable DVD Players   Samsung
10.4" Portable DVD Player Freeview TV   6 x Samsung M40 Black Ink Cartridge -Brand New
9.2" Portable DVD Player & Digital TV   100 x Samsung M40 Black Ink Cartridges
7" portable DVD Player with Carry Case   4 x Samsung C90 Ink Cartridges
7" Portable DVD Player with Freeview   Samsung M90 ink cartridges x 4
August 10.4"LCD TV with Analogue Tuner & DVD Player   Sharp | 4 x Sharp UX-C70B Black Ink Cartridges
Vazon 9.2"Swivel Screen DVD Player Digital freeview TV   Ultimail/Mymail
August 11" LCD Freeview TV with Analogue Tuner & DVD Player   3pcs cartridges Ultimail for Francotyp-Brand New
Xoro HSD7570 7" Portable DVD Player with Freeview Receiver   3pcs cartridges Mymail for Francotyp-Brand New
August 10.4" LCD Freeview TV & DVD Player with Built-in Battery   50pcs cartridges Mymail for Francotyp-Brand New
    50pcs cartridges Ultimail for Francotyp-Brand New
Portable Digital TV   100pcs cartridges Ultimail for Francotyp-Brand New
10.4" LCD Freeview TV   100pcs cartridges Mymail for Francotyp-Brand New
Vazon 9.2" 360°Swivel Screen DVD Player Digital freeview TV    
August DA920A 9.2" LCD TV   Fingerpint Lock
August DA701B 7" LCD TV   ADEL LA9-3 Fingerprint Lock- Right Handed
Xoro HSD7510 9.2" Digital TV   ADEL LA9-3 Fingerprint Lock Left handed
XORO HSD7500 7" Freeview TV    
August 10.4" LCD Freeview TV   DAB Radio
August 10.4" LCD Freeview TV   Trinloc Sinfonie DAB -Black
DVB-T USB Freeview TV/Radio Receiver   Trinloc Sinfonie DAB -Orange
3.5"Handheld DVB TV   Trinloc Sinfonie DAB -White
August 10.2" LCD TV with Built-in Freeview Receiver   Intempo DAB digital Radio Reciever -Pink
August 11" LCD Freeview TV with Analogue Tuner & DVD Player    
    FM Transmitter
Digital Camera   3 in 1 iPod Car Kit (FM Transmitter/Car Charger/Holder)
Samsung Digimax L85 8MP Digital camera   200 Channels Audio Wireless FM Transmitter For iPod
Samsung Digimax S700 7.2 MP digital camera   Car Audio Wireless FM Transmitter
Samsung Digimax S600 6.0 MP digital camera   Portable Stereo FM Transmitter 200 Channels
Samsung Digimax L85 Cradle SCC-S7   Audio Wireless FM Transmitter For iPod
    Audio Wireless FM Transmitter For iPod
Bluetooth Car Mirror   Car MP3 player and MP3/WMA Wireless FM Modulator with SD Card Sl
Bluetooth Rearview Mirror Car Kit with parking    
     

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Digital Photo Frame- 12inch multi-function Wood Black
Digital Photo Frame- 12inch multi-function Wood Black
£139.99
£129.24
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Archos 405 Mp4 Player
Archos 405 Mp4 Player
£119.99
Reviews more
1.1 Inch USB KeyRing  Digital Photo Frame Sliver
Loved it. Have a pic of my girlfriend on it or else she'd ki ..
4 of 5 Stars!

















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