Digital Audio Broadcasting (DAB) FAQ

Explanation and Introduction of XTRONS Units Function
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Digital Audio Broadcasting (DAB) FAQ

Postby xtrons » Thu Dec 29, 2016 2:14 am

Q1. What is DAB and DAB+? Digital Radio / Digital Audio Broadcasting?

A1. Digital Audio Broadcasting, or DAB, is the technology behind terrestrial digital radio.

DAB+ is an upgraded version of the technology used to bring you DAB digital radio.

A DAB audio signal is encoded in MP2 (the ancestor to today’s MP3 format). A DAB+ audio signal is encoded in aacPlus (strictly, aacPlus HE v2). Your iPod uses AAC as standard; aacPlus uses a number of clever techniques to make it more efficient, so audio sounds better at lower bitrates. Roughly, 48kbps DAB+ sounds the same as a 128kbps DAB signal.

A DAB+ audio signal also includes slightly better error correction, which might mean a reduction in 'bubbling mud' or other problems in poor reception areas.

Apart from that, there are no differences. DAB+ and DAB use the same transmitters, same multiplexing equipment, and so on, and DAB and DAB+ signals can happily live on the same DAB multiplex. A DAB+ radio will also happily decode DAB signals as well (although a DAB radio won’t decode DAB+). Many DAB radios on sale today will cope with DAB+ automatically, or will prompt you with instructions on how to upgrade (which could be as easy as typing a code in, or downloading some new firmware).

Q2. Why are we switching to DAB/DAB+?

A2. FM is full and has reached the limit of its capabilities and like other media, radio needs to have a digital future to meet listeners' expectations. Digital broadcasting is more efficient and we need to invest now in infrastructure for the future.

Digital radio gives you more of what you love, More content (the stations you have now, and digital-only stations); ease of use (find your favorite station at the touch of a button, track and artist information onscreen); and digital features (digital quality sound, internet radio, and the ability to pause, rewind and record).

Q3. Which countries are using DAB / DAB+?

A3. World DAB (the organisation in charge of the DAB standards) collates up-to-date information on the global rollout of DAB/DAB+ digital radio, including coverage, services on air, receivers, automotive sector, trials, regulation, marketing and emergency broadcasting.

More than 30 countries provide DAB, DAB+ and / or DMB broadcasts, either as a permanent technology or as test transmissions.

Please refer to the below image for details (Picture By Saftorangen - Own workWorldDMB - Country Information for DAB, DAB+ and DMB, CC BY-SA 3.0,.)
DAB+.png (45.24 KiB) Viewed 11032 times

Countries with regular services

Australia, Belgium, Czech Republic, Denmark, France, Germany, Gibraltar,Hong Kong, Ireland, Italy, Kuwait, Malta, Monaco, Netherlands, Norway, Poland, Slovenia, South Korea, Spain, Sweden, Switzerland, United Kingdom.

Countries with trials / tests

Austria, Bahrain, Brunei Darussalam, China, Chinese Taipei, Holy See (Vatican City State), Hungary, Indonesia, Israel, Latvia, Malaysia, Mongolia, Myanmar, New Zealand, Romania, Slovakia, South Africa, Thailand, Tunisia, Turkey, United Arab Emirates.

Countries with interest

Bulgaria, Estonia, Russian Federation, Serbia, Singapore, Sri Lanka, Ukraine, Vietnam.

Q4. What is the advantages of a DAB / DAB+ Radio?

A4. DAB / DAB+ have variable bandwidth and more stations. Its reception quality is better than FM; it has less unlicensed ("pirate") station interference.

Q5. Are there any DAB+ stations in the UK?

A5. Yes. The UK's first national DAB+ stations launched on 29 February 2016 on the new national DAB commercial multiplex, Sound Digital, as part of a line-up of 18 national DAB services. Jazz FM, Fun Kids and Magic Chilled will all be delivered nationally using DAB+.

To check if you can get the new national DAB+ stations, visit our coverage postcode checker at

In addition there are currently four small local stations on DAB+ in Portsmouth as part of a technical trial.

Q6. Can I use my existing FM or TV aerial?

A6. Probably not, but give it a try. Some DAB stations can be received by plugging a standard FM or TV aerial into a DAB radio, but the best reception will always be via a DAB aerial. There’s no guarantee your existing aerial will work.

Q7. Which DAB+ solutions does XTRONS provide?

A7. XTRONS provides two solutions for DAB+. Some XTRONS units have a built-in DAB+ tuner, whilst others will accept a compact external DAB+ device to be connected.

Q8. Which XTRONS units have a built-in DAB+ tuner?

A8. The D713DAB, TD699DAB are universal fit units with a built-in DAB+ tuner.

Below are some XTRONS vehicle specific models with built-in DAB+ tuner,

PX70FSFDAB-B, PX71FSFDAB-S for Ford cars.

PX7146BDAB, PX7153BDAB, PX7190BDAB for BMW cars.

PX71AA3DAB, PX71AA4DAB for Audi cars.

PX71MTVDAB for VW cars

PX71OLODAB-G for Vauxhall cars.

For detailed fitment or further information please contact XTRONS Customer Service.

Q9. How does the XTRONS external DAB+ device work?

A9. The XTRONS external DAB device is compatible with an ever increasing range of Android units. Please check the product description page. You just need connect the USB stick with the USB port of the head unit, place the DAB+ antenna in the optimal position of your car and click the DAB+ icon on head unit.

Important Information: Please keep in mind that the following XTRONS head units support external DAB+ device, and you need to order XTRONS USBDAB01 to use the DAB+ function on the units: PF75FSFAP-B, PF75FSFAP-S, PF75QSFAP-S, PF75QSFAP-B, PF7546BAP, PF7553BAP, PF7590BAP, PF75AA3AP, PF75AA4AP, PF75ATTAP, PF75AA3ARP, PF75AA4ARP, PF75ATTARP, PF75JCCAP, PF75FFFAP, PF7539BAP, PF75HGTAP, PF75MTWAP, PF85MTVAP, PF75M203AP, PF75M211AP, PF75M245AP, PF75M164AP, PF9LMTVAP, PF75M209AP, PF75M220AP, PF75TRVAP, TL702AP, PF7581BAP, TL702AP, PL91MTVAP.

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