An Intro to Digital Audio Broadcasting (DAB radio)

The DAB standard also known as Eureka 147 was designed in the 1980s, and receivers have been available in many countries for several years. Proponents claim the standard offers several benefits over existing analogue FM radio:

- a high-fidelity audio

- more stations in the same broadcast spectrum

- increased resistance to noise, multipath, fading, and co-channel interference

- improved end-user features (program guides, radiotext, pause,...)

DAB+ is an upgraded version of the system released in February 2007 not compatible with DAB receivers. This new standard is 2-3 times more efficient due to the adoption of AAC+ audio Codec.

Italy has started transmitting DAB+ stations, Malta and Switzerland are due to launch DAB+ stations in 2008, and Australia and Germany are planning on launching DAB+ in 2009. F

rance has planned a roll out of this technology for Christmas 2008 with an initial objective of 50% population coverage.

The radio industry in the UK is expecting DAB+ stations to be launched between 2010 - 2013, and podcast services using the DAB+ format will be launched in the UK in 2009.

DMB (Digital Multimedia Broadcasting) is a digital radio transmission system for sending multimedia (radio, TV, broadcasting) to mobile devices. As DMB is based on the DAB standard, a DMB video subchannel can easily be added to any DAB transmission, this is a great advantage over DVB-H, the main competing mobile TV standard.

This post was contributed by eXpansys plc, the owner of the eXpansys brand, the largest wireless technology online retail business in Europe and the USA.