All posts by Briantist
Below are all of Briantist's postings, with the most recent are at the bottom of the page.
The list of sites, as the diagram is a bit hard to read:
Huntshaw Cross
Ilfracombe
Okehampton
Braunton
Woolacombe
Swimbridge
Barnstaple
Countisbury
Stickelpath
Hartland
Orange - Johnstone Moor
Gt Torrington
Berrynarbour
Orange - Beacon Castle
Airwave - Wind Lane
Combe Martin
Muddiford
Orange - Higher Clifton
Orange - Fairoak
Chagford
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Charles Stuart: DAB uses MPEG-1/Level II as a audio "codec", DAB+ uses AAC.
AAC is able to provide the same quality of output with about half the bitrate.
There is no change to the COFDM transmission layer, the usual use is to provide more stations.
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Brian Wright: Due to the large number of DAB devices, it was decided to not use DAB+ in the UK for the moment.
As per the earlier article, DAB is about choice, not providing higher bitrates.
The "promise" was changed over a decade ago.
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David: The disturbance to Freeview is actually at the worst it can be when it is not being used.
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Eric: During the testing period, there was a 0% effected rate for Crystal Palace. The transmitter is a very powerful TV transmitter as well as being a long way from the 800MHz range.
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Trevor Harris: "No matter what Ofcom says DAB+ is only suitable for national stations because it is a multiplexed system."
Obvious points:
1) You can have a multiplex with a single station on it.
2) As DAB is run as single frequency networks (SFN) you can have them as large or small as you want. So we have the covering counties (as that's how are local commercial and BBC radio is organised), nationally (like BBC and D1) and super-regional (like Yorkshire or Central Scotland or London 2 and 3).
3) Of course, there is List of all DAB multiplexes | ukfree.tv - 11 years of independent, free digital TV advice which rather puts your "lie" claim to bed as well as Ofcom | Annex B. Local DAB build-out plans
In the UK there are no markets for commercial radio that don't have more than one station, Ofcom | Awards of FM Independent Local Radio Licences and the BBC have a local staion for every location.
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Sunday 1 September 2013 8:11PM
michael: The coverage map (planned) is thus:
from
http://stakeholders.ofcom….pdf
it only has one transmitter at the moment
Details of 10C_South_East_Devon DAB multiplex | ukfree.tv - 11 years of independent, free digital TV advice