New mux planned - Out of GRP A - Crystal Palace

On 19 Aug., 00:39, "-GB-Carpy"
wrote:
Anybody know anything about this? Apparantly there will probably be a mux
transmitted on CH42 in addition to the 6 planned ones within group A after
switchover. I can't really find much information about this but it's got me
wondering whether I should be using wideband aerials on CP unless I really
need the extra special oomph of a GRP A.......

Anyone got any information on this additional mux?

Why don't you quote your sources ?

It is just one of many channel mentioned by Ofcom as an
example. It could possible be used for a
low power local multiplex around CP.

Everything else is speculation.

Lars

Ofcom consultation interleaved spectrum.

wrote in message
...
On 19 Aug., 00:39, "-GB-Carpy"
wrote:
Anybody know anything about this? Apparantly there will probably be a mux
transmitted on CH42 in addition to the 6 planned ones within group A
after
switchover. I can't really find much information about this but it's got
me
wondering whether I should be using wideband aerials on CP unless I
really
need the extra special oomph of a GRP A.......

Anyone got any information on this additional mux?

Why don't you quote your sources ?

It is just one of many channel mentioned by Ofcom as an
example. It could possible be used for a
low power local multiplex around CP.

Everything else is speculation.

Lars

Ofcom consultation interleaved spectrum.


There's some stuff here
http://www.ukfree.tv/fullstory.php?storyid=1107051388

wrote:

Ofcom consultation interleaved spectrum.


This:-

http://www.ofcom.org.uk/consult/cond...eaved/summary/

More muddled thinking by Ofcom IMHO, YMMV.

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

There's some stuff here
http://www.ukfree.tv/fullstory.php?storyid=1107051388

It looks like we're going to get a 7th Freeview Multiplex with more or less
national coverage, and an 8th Freeview Multiplex for local TV. Your out of
group channel, 42, is Crystal Palace Mux 8.

In the case of Crystal Palace, Mux 7 is on Channel 29, which is Mux D at
present. This is the pattern at most stations. After throwing away a large
chunk of meant-for-TV spectrum for use by the mobile phone companies, 3 of
the original 5 analogue channels, and 4 of the original 6 digital channels
are left, leaving a total of 7, hence Mux 7.

The philosophy behind Mux 8 seems to be rather different, "Cause
interference to BBC1 on the PSB1 Mux at the adjacent station." This may not
be as mad as it seems because PSB1 will be the mux with the highest or joint
highest power, and therefore most able to withstand co-channel interference
from low power local transmissions at the adjacent main station. Hannington
PSB1 will be channel 42, hence Crystal Palace Mux 8 is also channel 42.

It looks as though Mux 8 may use QPSK, which could be very appropriate in 2
ways. One, it will greatly improve the range of the low power signal,
without increasing the co-channel interference at the adjacent station. Two,
the limited number of video streams available in a QPSK mux, possibly only 2
or 3 SD channels, is no real drawback for local TV.

Stephen wrote:
It looks as though Mux 8 may use QPSK, which could be very appropriate in 2
ways. One, it will greatly improve the range of the low power signal,
without increasing the co-channel interference at the adjacent station. Two,
the limited number of video streams available in a QPSK mux, possibly only 2
or 3 SD channels, is no real drawback for local TV.

I predict nothing will come of it all.

Put aside the problems with two extra muxes in some areas whose coverage won't
match the 'big six' and therefore will be a source of further confusion
because they will appear for some punters, but not others. Then, ask yourself
what exactly are these muxes going to carry ? Analogue local TV has been a
disaster quite frankly. How many of those services still survive ? Channel M
in Manchester springs to mind, and that's about it I think ? CM only services
because Guardian Group Media can afford to keep pumping cash into it. Most
(all ?) other services have folded.


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

In article , Stephen [email protected]
nkmail.sptv.demon.co.uk scribeth thus
There's some stuff here
http://www.ukfree.tv/fullstory.php?storyid=1107051388

It looks like we're going to get a 7th Freeview Multiplex with more or less
national coverage, and an 8th Freeview Multiplex for local TV. Your out of
group channel, 42, is Crystal Palace Mux 8.

In the case of Crystal Palace, Mux 7 is on Channel 29, which is Mux D at
present. This is the pattern at most stations.


After throwing away a large
chunk of meant-for-TV spectrum for use by the mobile phone companies,

Which bit of spectrum was that then?..



--
Tony Sayer

"tony sayer" wrote in message
...
In article , Stephen [email protected]
nkmail.sptv.demon.co.uk scribeth thus
There's some stuff here
http://www.ukfree.tv/fullstory.php?storyid=1107051388

It looks like we're going to get a 7th Freeview Multiplex with more or
less
national coverage, and an 8th Freeview Multiplex for local TV. Your out of
group channel, 42, is Crystal Palace Mux 8.

In the case of Crystal Palace, Mux 7 is on Channel 29, which is Mux D at
present. This is the pattern at most stations.

After throwing away a large
chunk of meant-for-TV spectrum for use by the mobile phone companies,

Which bit of spectrum was that then?..

Channels 31 to 40, and 61 to 69. If it wasn't for this channels 32, 33, 34
and 37 would still be available at Crystal Palace after analogue switch off.

There would be enough spectrum for a full range of HD channels at higher
bitrates, and it would not be necessary to compromise the reception of BBC
TV by squeezing it all into Mux 1.

In article , Stephen [email protected]
nkmail.sptv.demon.co.uk scribeth thus
"tony sayer" wrote in message
...
In article , Stephen [email protected]
nkmail.sptv.demon.co.uk scribeth thus
There's some stuff here
http://www.ukfree.tv/fullstory.php?storyid=1107051388

It looks like we're going to get a 7th Freeview Multiplex with more or
less
national coverage, and an 8th Freeview Multiplex for local TV. Your out of
group channel, 42, is Crystal Palace Mux 8.

In the case of Crystal Palace, Mux 7 is on Channel 29, which is Mux D at
present. This is the pattern at most stations.

After throwing away a large
chunk of meant-for-TV spectrum for use by the mobile phone companies,

Which bit of spectrum was that then?..

Channels 31 to 40, and 61 to 69. If it wasn't for this channels 32, 33, 34
and 37 would still be available at Crystal Palace after analogue switch off.

There would be enough spectrum for a full range of HD channels at higher
bitrates, and it would not be necessary to compromise the reception of BBC
TV by squeezing it all into Mux 1.


Hummm....

Makes me wonder if the mobile Telcos, who don't seem to be -that- short
of spectrum, will be able to get mobile manufacturers to make UK only
devices in order to take advantage of the UK's rather odd allocations!..
--
Tony Sayer

On 21 Aug., 05:19, "Stephen"
wrote:
"tony sayer" wrote in message

...





In article , Stephen [email protected]
nkmail.sptv.demon.co.uk scribeth thus
There's some stuff here
http://www.ukfree.tv/fullstory.php?storyid=1107051388

It looks like we're going to get a 7th Freeview Multiplex with more or
less
national coverage, and an 8th Freeview Multiplex for local TV. Your out of
group channel, 42, is Crystal Palace Mux 8.

In the case of Crystal Palace, Mux 7 is on Channel 29, which is Mux D at
present. This is the pattern at most stations.

After throwing away a large
chunk of meant-for-TV spectrum for use by the mobile phone companies,

Channels 31 to 40, and 61 to 69. If it wasn't for this channels 32, 33, 34
and 37 would still be available at Crystal Palace after analogue switch off.

No this is NOT true.
Only channel 33 and 37 are allowed to transmit
with full power from CP, plus channel 22,23,25,26,
28 and 30 that will transmit PSB 1-3 and COM 1-3
from CP.

The mobile phone companies will need some spectrum
not for phones, but mostly for wireless broadband services
that will give huge returns to the UK society.

TV is important, but much is just entertainment,
broadband is much more than that.

Lars

In article
..com, scribeth thus
On 21 Aug., 05:19, "Stephen"
wrote:
"tony sayer" wrote in message

...





In article , Stephen [email protected]
nkmail.sptv.demon.co.uk scribeth thus
There's some stuff here
http://www.ukfree.tv/fullstory.php?storyid=1107051388

It looks like we're going to get a 7th Freeview Multiplex with more or
less
national coverage, and an 8th Freeview Multiplex for local TV. Your out of
group channel, 42, is Crystal Palace Mux 8.

In the case of Crystal Palace, Mux 7 is on Channel 29, which is Mux D at
present. This is the pattern at most stations.

After throwing away a large
chunk of meant-for-TV spectrum for use by the mobile phone companies,

Channels 31 to 40, and 61 to 69. If it wasn't for this channels 32, 33, 34
and 37 would still be available at Crystal Palace after analogue switch off.

No this is NOT true.
Only channel 33 and 37 are allowed to transmit
with full power from CP, plus channel 22,23,25,26,
28 and 30 that will transmit PSB 1-3 and COM 1-3
from CP.

The mobile phone companies will need some spectrum
not for phones, but mostly for wireless broadband services
that will give huge returns to the UK society.

You reckon...


TV is important, but much is just entertainment,
broadband is much more than that.

Of course;!..


Lars


And the UK will have that bit of spectrum and system no doubt all to
itself!..
--
Tony Sayer