South Wales DAB Multiplex Reallocates Data for New Streams
Ebbw Vale, South Wales - Jul 20, 2011 - The introduction of a new station in South Wales illuminates an interesting feature of the DAB Multiplex transmission scheme used throughout England: The ease with which the multiplex operator can reallocate the available data bandwidth, thus creating room for another station or stations.
Ofcom (England's equivalent of the FCC) provides a form upon which changes are requested. One such example can be seen here. In this case, Mountain FM, previously only heard by way of the Internet, can now be heard on the MXR South Wales and Severn Estuary Multiplex. As you can see from the Ofcom document, Rock Radio went from a 128kb/s data stream (stereo) down to an 80kbps /mono stream; at the same time, RealRadio went from 128kb/s down to 112kb/s (stereo) thus freeing 64kb/s (mono) for Mountain FM. Another example is a subsequent change for Nation Radio. (Read that particular Ofcom document.) Nation went from 128kb/s stereo down to 64kb/s mono, thus freeing 64kb/s for a new service known as Bay Radio.
Acceptable Use Policy blog comments powered by Disqus
[an error occurred while processing this directive]
Today in Radio History
The history of radio broadcasting extends beyond the work of a few famous inventors.
Read each issue online in our Digital Edition Format in your Web browser.
EAS Information More on EAS
The feed provides feeds for all US states and territories.
Need a calendar for your computer desktop? Use one of ours.
Information from manufacturers and associations about industry news, products, technology and business announcements.
Staying on-air is priority #1, but 100 percent redundancy comes at a cost.
Browse Back Issues[an error occurred while processing this directive]
Also in the November Issue
- Music is Everywhere at WTMD
- FCC Looks to Update RF Exposure Rules
- Government Shutdown Causes FCC Delays
- Applied Technology: Wheatstone baseband192
- Side by Side: Video Cameras
- Exploring More from Google Earth
- The History of W9BSP