- Fri Nov 21, 2014 6:25 am
As usual, the M**l take a story where there will be knock-on effects but (a) have little clue what they're on about and (b) get things mixed up.
Of course, "retuning" will take place but as Arnold has mentioned most viewers are reasonably used to this and most new televisions will seek out new channels when on or in standby and change then themselves.
The big issue is that for quite a lot of people is that their aerial on the roof/chimney or in the attic will have to be changed, not moved. It is because this future "700 MHz" clearance of TV services to mobile operation will require a major reshuffling of frequencies at transmitter sites. The first clearance of the 800MHz band from TV to 4G mobile use cleared UHF frequency channels 61 - 69 that was completed last year. When the first DSO occurred, Ofcom and the broadcasters tried at pains to ensure that almost everyone would not have to replace any existing aerials, and even clearing the 800MHz band didn't affect this. But clearing the 700MHz band of television means UHF frequency channels 49-60 will also be cleared leaving television in a band between UHF channels 21-48. The big problem here is that at transmitter sites and relays that have normally used channels from 48 upwards for TV broadcasting will obviously no longer do so in a few years time - and aerials that have been up for a good number of years that are designed to mainly receive UHF frequency channels 48 and higher (called UHF C/D aerials in the industry) will need to be replaced with ones that receive the new frequencies that will then be transmitted from the same site, as their current ones won't work well on them.
There is potential for a lot of upheaval in parts of the UK for this, the biggest one is NW England where the Winter Hill site covers the likes of Greater Manchester, quite a bit of Liverpool, Preston, Blackpool etc. as well as a fair bit of the North Wales coastline. Some people who are having problems getting decent reception of BBC Four HD & BBC News HD have needed to get their aerial replaced. Other parts of the UK that might be in a similar pickle include, of the top of my head, Norfolk, South & East Kent, South Wales, Anglesey, Eastern Borders, Tyneside, Dundee and NW Northern Ireland, not to mention many smaller pockets served by relay sites.
Saying that, most new aerial installs by professionals in Britain in the last few years have been done using "wideband" aerials that cover all UHF frequencies so they shouldn't need replacing. Also a lot of people are now able to get away with indoor aerials for Freeview due to the nature of a digital signal compared to analogue, a lot of aerial installers have noticed a right drop off in installing new terrestrial aerials because of this. So the figure of "20 million" homes is a major exaggeration, but expect some outrage and sad faces come the end of this decade and the beginning of the next.
↑↑↑ The above message has been paid for in part thanks to the European Union & George Soros ↑↑↑