Now You're Talking!: All You Need to Get Your First Ham Radio License (Now Youre Talking, 5th Ed) Passport to World Band Radio: 2004 (Passport to World Band Radio, 2004) 40 Watts from Nowhere : A Journey into Pirate Radio World Radio TV Handbook 2004: The Directory of Global Broadcasting Say Again, Please: Guide to Radio Communications Radio: An Illustrated Guide Darwin's Radio : In the next stage of evolution, humans are history... Trans-Sister Radio The Voice on the Radio

Digital radio

(Omdirigeret fra Eureka 147 DAB System)

Der findes i dag (2003) flere forskellige digitale radiosystemer også kendt som digital radio:

• Satellitradio
  • DSat (Eureka 147 DAB System baseret)
• Digitalt kabel
• Internetradio f.eks.:
  • Quicktime Player.
  • Microsoft Media Player.
  • Real Player.
• Digital Radio Mondiale (DRM) på:
  • Langbølgebåndet.
  • Mellembølgebåndet.
  • Kortbølgebåndet.
• Digital Audio Broadcast (DAB):
  • T-DAB I Europa: Eureka 147 DAB System.
    • VHF, TV bånd III, kanal 12C, 217,5 - 230,0 MHz (Danmarks Radio).
    • UHF, L-bånd, 1.452 - 1.492 MHz (dette frekvensbånd er ikke taget i brug - 2003).
  • iDAB. iBiquity Digital Corp: In-Band On-Channel DAB, IBOC DAB = HD Radio. FM bagud kompatibelt til sending på FM-båndet.
  • DVB-T - kan også indeholde en eller flere radiokanaler.

Se også

• Radiofoni, radio, radiomodtager, fjernsynsmodtager, forforstærker, Digital Radio Mondiale.

Eksterne henvisninger

Eureka 147 DAB System

• Nyheder:
  • Google News: "Eureka 147"
  • Google News: DAB radio
  • Google News: "Digital Audio Broadcast"
• Norden, DR:
  • Nordini: Nordic Radio Digital Initiative
  • DR Digital radio, Hvad er digital radio
• Blandet:
  • BBC: Digital Radio -- The Eureka 147 DAB System
  • DAB and Digital Satellite Radio Links
  • RadioWorks DAB Guide - How Does Digital Audio Broadcasting Work?
  • ePanorama: Digital Audio Broadcast (DAB)
  • oneradiodab.com
• Evalueringer:
  • 12 November 2002, BBC Admit DAB Sounds Worse Than FM (from What Hi-Fi magazine) Citat: "...However, she admitted that the BBC has been altering bit-rates. Some Radio 3 transmissions have been reduced to 160Kbps from the usual rate of 192Kbps, while Radio 4 broadcasts have been cut to 128Kbps, and even 80Kbps mono at times. ?We did change the bit-rate of transmissions to accommodate five new services this year,? said Fox. ?We have to strike a balance between improved programming choice and sound quality.?..."
  • Article about DAB's Audio Quality by Dr David Robinson (PDF)
  • The World DAB Forum Web Site
• Anvendelser:
  • Nordini: Digitale radioapparater
  • DAB Receivers
  • Receivers for DAB. Last Update: March 30th, 2003 - med billeder
  • Pertel DR201 DAB Digital Radio with MP3 Player
  • World DAB: DAB Receiver oversigt (aktuel)

iBiquity Digital Corp: IBOC DAB, HD Radio

• Nyheder:
  • Google News: "HD Radio"
  • Google News: "IBOC"
• Blandet:
  • 01.14.03, Digital Radio Debuts Citat: "...HD Radio (The HD apparently stands for high definition, as in HDTV), used to be known as IBOC, and is the brainchild of Ibiquity..."
  • April 25, 2003, Now hear this: Radio turns on digital signals Citat: "... From their brand-new transmitter atop the John Hancock Center, the two stations switched on IBOC, the In-Band On-Channel Digital Audio Broadcasting technology, developed by iBiquity Digital Corp.... The catch is that the digital signals require use of receivers that aren't expected to come on the market until July...."
• Evalueringer:
  • The National Radio Systems Committee (NRSC)
  • NRSC: AM IBOC Evaluation Report
  • Toledoblade.com: May 30, 2003, High-Definition radio, Digital demonstration receives poor reviews, could delay transition
  • 28-May-2003, America's radio revolution stalls Citat: "...Amherst says eight years of broadcasts and booming sales of digital radios in the UK have proven Eureka's sound quality to be good, largely free of interference and "superior" to IBOC...."
• Anvendelser:
  • 05.05.03, A Radio That Records Digitally

Blandet DAB

• ZDNet Australia, 6 May 2003 Digital radio moves forward with federal study group Citat: "...The Study Group is to report by 28 November 2003..."

Now You're Talking!: All You Need to Get Your First Ham Radio License (Now Youre Talking, 5th Ed)		Passport to World Band Radio: 2004 (Passport to World Band Radio, 2004)		40 Watts from Nowhere : A Journey into Pirate Radio		World Radio TV Handbook 2004: The Directory of Global Broadcasting
Say Again, Please: Guide to Radio Communications		Radio: An Illustrated Guide		Darwin's Radio : In the next stage of evolution, humans are history...		Trans-Sister Radio
The Voice on the Radio