Digital switchover HD plans

On May 14, 10:57 am, "David"

In any case, there's nothing compelling that'll be missed. Shopping
channels, a few +1s, and some crappy radio stations. Hardly worth
worrying about IMHO.

I would miss Five, watch it as much as BBC1 and ITV1.

Please go back and read what's been said. Five will be on a PSB mux,
and therefore after DSO is complete will be available from all 1154
transmitter sites. Anyone that will receive BBC, ITV, and 4, will also
get C5. i.e. 99% of the population.

Mark Carver wrote:

On May 14, 8:26 am, "DAB sounds worse than FM" [email protected] wrote:
Mark Carver wrote:

C5 will be carried on the PSB 3 mux after DSO in each region, so 99%
UK coverage from all 1154 sites.

This is confirmed on the Digital UK website, so I don't know which bit
DABSWTFM was looking at ?

http://www.digitaluk.co.uk/en/what/f...nnels-will-be-
avialable-as-a-result-of-switchover?

I was looking at what the Digital UK website said that Whitehaven would get:

http://www.digitaluk.co.uk/en/where/...tml#what-will-...

and it doesn't include Five in that list.

You're right, it doesn't. Looks to me that they are getting the
existing Muxes, 1,2 and B. C5 is on Mux A. C5 are supposed to be
moving to what will be PSB-3, that will be a BBC/C5/S4C/Gaelic TV mux.
It looks as if the PSB/COM mux structure will not be up and running in
time for the Whitehaven DSO. Perhaps when the rest of the Border
region switches (a year later) then Whitehaven will switch to PSB
1,2,3.

This switching of Muxes is going to be a shambles for the millions of
viewers who don't appreciate that a weekly rescan will be mandatory.

And what about the little old lady whose STB freezes? How long before
she realises it's the box and not the transmission?

The way DSO is being implemented is making it a cowboy's charter.

--

Immunity is better than innoculation.

Peter

In article ,
Peter Hayes wrote:
This switching of Muxes is going to be a shambles for the millions of
viewers who don't appreciate that a weekly rescan will be mandatory.

I've already experienced that problem with my mum, she kept saying her
remote control wouldn't work any more and had asked for a new one - her
next door neighbour had agreed with her too.

Went round there and found she was using a box which didn't have a single
button on it - not even a power one. Unplugged it at the wall for a bit,
plugged it back in and the remote works now.

There is of course a help section in the manual, but it doesn't mention
anything about resetting the box if the remote fails to work.

--
___________________________________________
|\ /| ark Fraser
| \/ | Somerset /www.mfraz.freeserve.co.uk
| |__________/Acorn SA RISC PC You know what the sig means!

"David" wrote in message

wrote in message
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On 13 May, 09:55, "David" wrote:
.

Would that be a mono portable radio? You need a much higher signal
strength to receive stereo hiss-free.


Yes it is, but the car set is stereo and by thier nature car aerials
not high.

Many stereo FM car radios have "stereo/mono blend", where the reproduction
becomes progressively less stereo as the signal become weaker rather than
getting more hissy, so you might not notice poor reception. Also car radios
are much more sensitive than fixed ones in order to cope with mobile
reception conditions.

--
Max Demian

In article om,
Mark Carver wrote:
On May 14, 8:34 am, "David" wrote:

In my view all terrestrial digital transmitters should give the same
choice of 6 muxs. If I were in an area such as your Whitehaven I
would be compaining about being short changed.

All 1154 transmitters cannot broadcast six muxes, there is not enough
spectrum avaialble. ISTR there can only be a maximum of 200 stations
that could do so, the COM operators have decided on just 81.

Of course, not all the analogue relays will actually be needed for DTTV,
particularly when they were needed to deal with multipath. Perhaps someone
will the check these out after DSO and reallocate their channels.

unlikely



In any case, there's nothing compelling that'll be missed. Shopping
channels, a few +1s, and some crappy radio stations. Hardly worth
worrying about IMHO.

--
From KT24 - in "Leafy Surrey"

Using a RISC OS computer running v5.11

wrote:
On 12 May, 13:03, "DAB sounds worse than FM" [email protected] wrote:
When the analogue signal has been switched off in a given region,
e.g. Border will be the first, will that region then have the full 6
x 24 Mbps = 144 Mbps of capacity to use so that the regions that
switchover first will get for example the BBC HD channel before the
other regions?

I've seen a mention of two sets of muxes being distributed nationally
during switch over - the current set, _and_ the PSB1, PSB2, PSB3,
COM1, COM2, COM3 set, which are different: all 64 QAM, with channel
five on the BBC mux.

If this is true, it suggests people (even those with DTT already) will
see an immediate advantage to switch over in their area (extra
capacity). If it's not true, I don't see how it'll work because the
relays will still be without channel five.


It sounds like some regions will get HD first then. The PSBs have been
saying that they're desperate to provide their channels in HD, so we should
see how eager they really are to provide them...


--
Steve - www.digitalradiotech.co.uk - Digital Radio News & Info

Find the cheapest Freeview & DAB prices:
http://www.digitalradiotech.co.uk/fr..._receivers.php
http://www.digitalradiotech.co.uk/dab/dab_radios.php

On 14 May, 17:40, charles wrote:
In article om,
Mark Carver wrote:

On May 14, 8:34 am, "David" wrote:
In my view all terrestrial digital transmitters should give the same
choice of 6 muxs. If I were in an area such as your Whitehaven I
would be compaining about being short changed.
All 1154 transmitters cannot broadcast six muxes, there is not enough
spectrum avaialble. ISTR there can only be a maximum of 200 stations
that could do so, the COM operators have decided on just 81.

Well, there's clearly enough spectrum available for them to tx 4
muxes, because they ttx 4 analogue channels now!

It's the cost, and the decision to sell off spectrum, rather than the
lack of available spectrum itself, which will limit the number of
muxes to 3.

Of course, not all the analogue relays will actually be needed for DTTV,
particularly when they were needed to deal with multipath. Perhaps someone
will the check these out after DSO and reallocate their channels.

unlikely

Very unlikely in some cases. The only reason for DTT to exist is so
that they can switch off analogue, flog some spectrum, but people can
continue to receive TV through their exsting aerials. If a thousand
people have to turn their aerial around to face the main tx (and maybe
replace it, if it's a different group), it could be cheaper to keep
the existing relay - and certainly better PR for the BBC and
government.

In any case, there's nothing compelling that'll be missed. Shopping
channels, a few +1s, and some crappy radio stations. Hardly worth
worrying about IMHO.

We have little idea what will be on Com1,2,3 by 2012. It won't be PSB,
but it will probably include plenty that many people want to watch.

Still, as long as there's a decent, full Freesat service by (before)
then, no one needs to worry.

Cheers,
David.

In article ,
Max Demian wrote:
Also car radios are much more sensitive than fixed ones in order to
cope with mobile reception conditions.

IIRC there is a theoretical maximum sensitivity which was achieved many
years ago.

--
*Virtual reality is its own reward *

Dave Plowman London SW
To e-mail, change noise into sound.

wrote:
On 14 May, 17:40, charles wrote:
In article m,

In any case, there's nothing compelling that'll be missed. Shopping
channels, a few +1s, and some crappy radio stations. Hardly worth
worrying about IMHO.

We have little idea what will be on Com1,2,3 by 2012. It won't be PSB,
but it will probably include plenty that many people want to watch.

Still, as long as there's a decent, full Freesat service by (before)
then, no one needs to worry.


There's still the issue of Channel 4 and Five being encrypted on satellite
though. Channel 4 said recently that they want to be free-to-air on Freesat
but they're still under contract with Sky, but as Freesat is being launched
as an option for people to switch to digital TV who can't get Freeview you'd
hope that Ofcom would intervene, but they're (in their own words) "biased
towards non-intervention", so they'll do bugger all and then say "the market
decided".

BTW, I see that the bit rate of the BBC HD channel has fallen on satellite
to about 16 Mbps:

http://www.digitalradiotech.co.uk/uk..._bit_rates.php

Presumably the H.264 encoder has got better, and I was told last week that
2nd generation H.264 encoders are due out in the next 6-12 months that'll
bring the bit rate down to 8-12 Mbps. To be honest, the bit rates were never
going to stay at 20 Mbps, but so long as it still looks good I don't mind.


--
Steve - www.digitalradiotech.co.uk - Digital Radio News & Info

Find the cheapest Freeview & DAB prices:
http://www.digitalradiotech.co.uk/fr..._receivers.php
http://www.digitalradiotech.co.uk/dab/dab_radios.php

On 16 May, 12:34, "DAB sounds worse than FM" [email protected] wrote:

BTW, I see that the bit rate of the BBC HD channel has fallen on satellite
to about 16 Mbps:

http://www.digitalradiotech.co.uk/uk..._bit_rates.php

Presumably the H.264 encoder has got better, and I was told last week that
2nd generation H.264 encoders are due out in the next 6-12 months that'll
bring the bit rate down to 8-12 Mbps. To be honest, the bit rates were never
going to stay at 20 Mbps, but so long as it still looks good I don't mind.

People on DS claim a visibly poorer picture. It's quite easy to make a
fair comparison as BBC HD repeat things so often!

I don't have an HDTV, so can't comment.

Cheers,
David.