After the analogue switch off......

How much bandwidth is said to be going to be available once the analogue
terrestrial switch off is complete?

Is it likely to be into the hundreds, or just double or treble what we get
now??

"Nel" wrote in message
...
How much bandwidth is said to be going to be available once the analogue
terrestrial switch off is complete?

Is it likely to be into the hundreds, or just double or treble what we get
now??

In terms of bandwidth expressed in Megahertz its going to be less than
we have now due to the proposed partial sell-off of the UHF broadcast
band to other users.
However I suspect your question is more concerned with the number of
services you will be able to recieve. I don't know the answer.

--

Graham.
%Profound_observation%

Nel wrote:
How much bandwidth is said to be going to be available once the analogue
terrestrial switch off is complete?

UHF Channels 31-35, 37, 39, 40 and 63-68 *might* be sold off for non
broadcasting use. That's 14 channels out of the presently used 46. Or 112 MHz
of bandwidth, out of the present 368 MHz.

Is it likely to be into the hundreds, or just double or treble what we get
now??

With the above bandwidth sold off, then the amount of DTT channels will be
slightly more than now, because all six muxes will switch to 64QAM. (Assuming
they stay as SD at current bit rates). Current plan is 90% of the UK
population to be served with six muxes, and the remaining 9 and a bit % with
just three.

If those 14 UHF channels do remain allocated to 'Telly', then two extra muxes
for 90%+ should be possible. They could carry between them about a dozen SD
channels, 5 or 6 HD channels, or gallons of DVB-H stuff for 'handheld'
receivers (or a mixture of all three formats).

--
Mark
Please replace invalid and invalid with gmx and net to reply.

Mark Carver wrote:
Nel wrote:
How much bandwidth is said to be going to be available once the
analogue terrestrial switch off is complete?

UHF Channels 31-35, 37, 39, 40 and 63-68 *might* be sold off for non
broadcasting use. That's 14 channels out of the presently used 46. Or
112 MHz of bandwidth, out of the present 368 MHz.

What would that "non-broadcasting use" actually be?

--
Alex

"I laugh in the face of danger. Then I hide until it goes away"

www.drzoidberg.co.uk www.ebayfaq.co.uk

"Dr Zoidberg" wrote in message
...
Mark Carver wrote:
Nel wrote:
How much bandwidth is said to be going to be available once the
analogue terrestrial switch off is complete?

UHF Channels 31-35, 37, 39, 40 and 63-68 *might* be sold off for non
broadcasting use. That's 14 channels out of the presently used 46. Or
112 MHz of bandwidth, out of the present 368 MHz.

What would that "non-broadcasting use" actually be?

More dosh for the government! :-(

"Mark Carver" wrote in message
...
Nel wrote:
How much bandwidth is said to be going to be available once the analogue
terrestrial switch off is complete?

UHF Channels 31-35, 37, 39, 40 and 63-68 *might* be sold off for non

seems a strange choice

what's different about 36 and 38?

broadcasting use. That's 14 channels out of the presently used 46. Or 112
MHz of bandwidth, out of the present 368 MHz.

Is it likely to be into the hundreds, or just double or treble what we
get now??

With the above bandwidth sold off, then the amount of DTT channels will be
slightly more than now, because all six muxes will switch to 64QAM.
(Assuming they stay as SD at current bit rates). Current plan is 90% of
the UK population to be served with six muxes, and the remaining 9 and a
bit % with just three.

If those 14 UHF channels do remain allocated to 'Telly', then two extra
muxes for 90%+ should be possible. They could carry between them about a
dozen SD channels, 5 or 6 HD channels, or gallons of DVB-H stuff for
'handheld' receivers (or a mixture of all three formats).

--
Mark
Please replace invalid and invalid with gmx and net to reply.

"Dr Zoidberg" wrote in message
...
Mark Carver wrote:
Nel wrote:
How much bandwidth is said to be going to be available once the
analogue terrestrial switch off is complete?

UHF Channels 31-35, 37, 39, 40 and 63-68 *might* be sold off for non
broadcasting use. That's 14 channels out of the presently used 46. Or
112 MHz of bandwidth, out of the present 368 MHz.

What would that "non-broadcasting use" actually be?

whatever the buyer wants to use it for. Could be HDTV.
could be wireless internet, or anything really.

tim

"tim....." wrote in message
...

"Mark Carver" wrote in message
...
Nel wrote:
How much bandwidth is said to be going to be available once the analogue
terrestrial switch off is complete?

UHF Channels 31-35, 37, 39, 40 and 63-68 *might* be sold off for non

seems a strange choice

what's different about 36 and 38?

38 is used for Radio Astronomy
36 was used for airfield ground radar, I am not sure of its status now.

--

Graham
%Profound_observation%

"Dr Zoidberg" wrote in message
...
Mark Carver wrote:
Nel wrote:
How much bandwidth is said to be going to be available once the
analogue terrestrial switch off is complete?

UHF Channels 31-35, 37, 39, 40 and 63-68 *might* be sold off for non
broadcasting use. That's 14 channels out of the presently used 46. Or
112 MHz of bandwidth, out of the present 368 MHz.

What would that "non-broadcasting use" actually be?

It would be broadcasting, but by mobile phone companies. The idea is to
repeat the mistakes made by On Digital by trying to charge the same level of
subscription as Sky Digital for a vastly inferior TV service with fewer
channels and, in this case, only a tiny low resolution picture. Channels
31-35, 37, 39, 40 and 63-68 will be used for Free to Air terrestrial HDTV,
as surely as On Digital failed and Freeview succeeded. The only question is
how long the government will delay the terrestrial HDTV service which both
the public and ITV's advertisers want, by hanging on to the "subscription
model" for this spectrum.

I think the terrestrial HDTV "trial" conducted by the BBC, ITV, Channel 4,
and Channel 5 from Crystal Palace was the first stage in the broadcasters'
battle for this spectrum, and I hope they win the war.

tim..... wrote:
"Mark Carver" wrote in message
...
Nel wrote:
How much bandwidth is said to be going to be available once the analogue
terrestrial switch off is complete?
UHF Channels 31-35, 37, 39, 40 and 63-68 *might* be sold off for non

seems a strange choice

The logic I think is this: if you examine the four main existing analogue
allocations at each transmitter, usually three will be in the 'retained'
section, and the forth in the 'to be sold off'. This means that those three
retained channels can be re-used for the three main PSB muxes after DSO,
therefore viewers' aerials will still be in the correct grouping, and any
communal systems should not need adjustments made to filtering arrangements.

--
Mark
Please replace invalid and invalid with gmx and net to reply.