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700 MHz band confirmed for mobile broadband use
http://www.broadbandtvnews.com/2015/11/24/694-790-mhz-confirmed-for-mobile-broadband/
Essentially UHF channels 49 to 60 will have to be handed over for mobile broadband use potentially by 2020.
The report does speak of protection for terrestrial TV operators currently using the frequencies but does not make it clear what this "protection" amounts to.
Clearly this will have implications for Freeview as those frequencies are in use in many places.
Essentially UHF channels 49 to 60 will have to be handed over for mobile broadband use potentially by 2020.
The report does speak of protection for terrestrial TV operators currently using the frequencies but does not make it clear what this "protection" amounts to.
Clearly this will have implications for Freeview as those frequencies are in use in many places.
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Just as well I have Freesat as they are killing Freeview.
http://stakeholders.ofcom.org.uk/consultations/700MHz/statement/
This virtually guarantees the need for DSO2 to switch over to DVB-T2 for all remaining muxes as well as shuffle transmitter several allocations down into the band currently occupied by COM7 & 8. The interim COM7 & 8 muxes will have to close.
And also I suspect the need to cram the existing channels into three muxes per main transmittter instead of six.
That is not what ofcom and those that understand spectrum planning say...
The three/six muxes per site are retained all be it with some more sfns ,
If the government has its way and DSO 2 means t2 AVC AAC .
. Then we can get more channels and more HD subject to commercial issues
and the BBC saves many tens of millions of pounds on dual emission ..
At no extra cost if linked with contractual tech refresh.
Let's be honest this is what most channels will be.
Does it include a list of which channels each multiplex will broadcast on and at what power level?
Which documents, there are thousands on the Ofcom site and most of them are rubbish.
Just explain to me how you fit the same number of UHF channels/multiplexes into a smaller spectrum than occupied at present without drastically reducing power output?
Changing from current 5 muxes to DVB-T2 MPEG-4 or HEVC compression will change the capacity around these figures:
(The PBS-3 mux is already DVB-T2/MPEG-4)
The COM4-6 muxes have a little higher bitrate now)
Upgrading SDTV to 720p50 HDTV or 1080p50 FullHD will require more capacity, but exacly how much more decreases over time.
Lars
Not so, there is the 500Mhz and the 600Mhz band left that Freeview could use,
even OFCOM mentions using the 600Mhz band for Freeview plus we have the HEVEC spec/standard
to reduce the space each channel takes up on a Mux
Becuse you do a complete replan and are not tied to the current assignment based on legacy analogue assignments required by the government economic restriction for DSO 1 that home antenna were not to be touched unless absolutely needed.
Documents start here http://stakeholders.ofcom.org.uk/binaries/consultations/700MHz/statement/700-mhz-statement.pdf
@ Clewsey Look at p36 (40) with 6 T2 muxes 112 SD 20 HD
http://stakeholders.ofcom.org.uk/binaries/consultations/uhf-strategy/arqiva.pdf
In pArt becuse things have moved on
. But that proved that there is just more than enough spectrum to retain what we have at the moment Of terms if 6 /3 mux ...
But local tv is not in that plan ... But there is white space
There is better protection if T2 is used ...
And also looking at a very few 700 MHz allocation being available for tv..
Thanks to both for the links.
I understand that juggling of the existing frequencies will create some extra room but I'm not convinced that it will permit six multiplexes in all areas which currently receive six muxes.
I also think they'll struggle to fill even three muxes if DVB-T2 becomes mandatory.
Why ?
The PSB will be mandated to emit HD only ... The past and current government have said this ..l so it is likely and may be a condition in the LF settlement,
Freeview tick is about to be withdrawn,,, so only Recievers which can also receive T2 and decode AVC AAC are accredited .. Freeview play or Freeview HD (+)
So in say 4 years time.......
And more channels want space and they also will need quality/ but rate as sub 720 pixel look crap on a to set now and worse on a 55in UHD etc,,,
I don't anticipate any net increase in either the total number of channels or the resolution they're broadcast in.
Half the current BBC channels will be gone, assuming no more simulcasting and the vast majority of commercial channels will continue to be broadcast in 3/4SD resolution.
So, plenty of room.
PSB3 is full (well, to all intents and purposes)
COM7 is full
That's two muxes, and they are already in DVB-T2. Even removing simulcasts you still need to fit the contents of more than three DVB-T multiplexes into one DVB-T2 mux to get everything into three DVB-T2 muxes.
Not for long. BBC3 is going off-air soon and there are doubts whether CBBC will continue much longer.
BBC4HD and CBeebiesHD may be moving to PSB3 in the near future, that's if BBC4 survives the next round of cuts. All the channels on COM7 are temporary anyway, there's no certainty any of them will continue after DSO2.
PSB1 will be virtually empty and PSB2 will have a big gap where ITV1 and Channel 4 used to be. The remaining channels on PSB2 will take up only a fraction of the space they did before.
But C5 will eventually be forced to broadcast FTA in HD. (and that's the first I've heard about CBBC closing)
No, but if the broadcasters are content to provide them now and are seeing benefit, there's a good chance they will want to continue. If the system gets limited to three muxes everywhere, they won't be able to do that as there will be no space or it will be too expensive.