Ann: Tacolneston pre-switchover retune event
 

Early temporary parking channels for Muxes B & C, announced 1st July:

- Mux B moves from Ch 58- to Ch 66

- Mux C moves from Ch 61 to Ch 68

- Retune required on or after 17th August 2011

Reason given: "To protect against the Waltham DSO, Mux B and Mux C adopt
UHF channels made available from Belmont."

Tacolneston DSO dates remain as 9th & 23rd November.

--
Andy

Ann: Tacolneston pre-switchover retune event
 

On Mon, 04 Jul 2011 11:11:56 +0100
Andy Wade wrote:

Early temporary parking channels for Muxes B & C, announced 1st July:

- Mux B moves from Ch 58- to Ch 66

- Mux C moves from Ch 61 to Ch 68

- Retune required on or after 17th August 2011

Reason given: "To protect against the Waltham DSO, Mux B and Mux C
adopt UHF channels made available from Belmont."

Tacolneston DSO dates remain as 9th & 23rd November.


If this means what I think it does, how is the Tacolneston-receiving
population going to be told in advance? Apart from those of us who see
this message, that is.

And, as someone who has only recently returned to this country, to land
in the middle of this ongoing event (aka 'chaos'), I would love it
if you could explain what the reference "To protect against the
Waltham DSO" means. I know what DSO is, but the statement means nothing
to me.

Thanks.

--
Davey.

Ann: Tacolneston pre-switchover retune event
 

"Davey" wrote in message
...
On Mon, 04 Jul 2011 11:11:56 +0100
Andy Wade wrote:

Early temporary parking channels for Muxes B & C, announced 1st July:

- Mux B moves from Ch 58- to Ch 66

- Mux C moves from Ch 61 to Ch 68

- Retune required on or after 17th August 2011

Reason given: "To protect against the Waltham DSO, Mux B and Mux C
adopt UHF channels made available from Belmont."

Tacolneston DSO dates remain as 9th & 23rd November.


If this means what I think it does, how is the Tacolneston-receiving
population going to be told in advance? Apart from those of us who see
this message, that is.

I assume the process is that there is some sort of advanced warning via a
"pop up" audio or visual message telling you that need to return on a
certain date in the near future. As this will be transmitted from the TX in
question, only people receiving TV from this transmitter will get this
message

tim

Tacolneston pre-switchover retune event
 

- Retune required on or after 17th August 2011


v.m.t for that. (We have the DSO dates on the calendar in bold ready to
support the old* folks in Suffolk but will now plan a trip around 17
August too.)

*I suppose I ought these days to say "even older" :(
--
Robin
PM may be sent to rbw0{at}hotmail{dot}com

Ann: Tacolneston pre-switchover retune event
 

On Monday, July 4th, 2011 at 11:30:08h +0100, Davey asked:

If this means what I think it does, how is the Tacolneston-receiving
population going to be told in advance?

On the eastwards version of Look East from Norwich of course.

They could devote a whole 3 minute segment on it to help pad
out the program. Or they could do an extended segment featuring
John Gummer and how it will affect his viewing habits.

--
"Climate change is very inconvenient" -- John Gummer

Ann: Tacolneston pre-switchover retune event
 

On Mon, 4 Jul 2011 11:56:30 +0100
"tim...." wrote:


"Davey" wrote in message
...
On Mon, 04 Jul 2011 11:11:56 +0100
Andy Wade wrote:

Early temporary parking channels for Muxes B & C, announced 1st
July:

- Mux B moves from Ch 58- to Ch 66

- Mux C moves from Ch 61 to Ch 68

- Retune required on or after 17th August 2011

Reason given: "To protect against the Waltham DSO, Mux B and Mux C
adopt UHF channels made available from Belmont."

Tacolneston DSO dates remain as 9th & 23rd November.


If this means what I think it does, how is the Tacolneston-receiving
population going to be told in advance? Apart from those of us who
see this message, that is.

I assume the process is that there is some sort of advanced warning
via a "pop up" audio or visual message telling you that need to
return on a certain date in the near future. As this will be
transmitted from the TX in question, only people receiving TV from
this transmitter will get this message

tim



Like those annoying ones that we saw a few weeks ago, for something
that had already happened, I believe.
Thanks.

Any help on the "To protect..."part of the message?
--
Davey.

Ann: Tacolneston pre-switchover retune event
 

Davey wrote:

Any help on the "To protect..."part of the message?

To prevent co channel interference to viewers in Waltham's service area,
simple as that.

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

www.paras.org.uk

Ann: Tacolneston pre-switchover retune event
 

On 04/07/2011 11:30, Davey wrote:

If this means what I think it does, how is the Tacolneston-receiving
population going to be told in advance? Apart from those of us who see
this message, that is.

MHEG captions, local news, etc. as already mentioned. Also more recent
DTT receivers should flag a service change automatically through use of
the network_change_notify_descriptor of the NIT.

And, as someone who has only recently returned to this country, to land
in the middle of this ongoing event (aka 'chaos'), I would love it
if you could explain what the reference "To protect against the
Waltham DSO" means.

"Protect" in the present context means to prevent excessive interference
to one service from another. Here, it's co-channel interference that
we're talking about. Since thousands of individual transmissions share
40-odd channels, every channel is re-used many times over and
significant co-channel interference can occur. This is why DSO is such
a complex and intricate juggling act (calling it chaos is somewhat
unfair) - changes at each transmitter have the potential to affect
several others, so before transmitter X can start using channel Y,
transmitter P might need to move a service from channel Y to channel Z.
Much of the work of broadcast service planning is concerned with
reducing such interference to acceptable levels.

Waltham will use both channels 58 and 61 for a while after DSO so the
services from Tacolneston currently using those channels must be
re-located temporarily (hence the term 'parking channels') until Taccy
undergoes its own DSO about 3 months later.

HTH
--
Andy

Ann: Tacolneston pre-switchover retune event
 

On Mon, 04 Jul 2011 14:26:39 +0100
Mark Carver wrote:

Davey wrote:

Any help on the "To protect..."part of the message?

To prevent co channel interference to viewers in Waltham's service
area, simple as that.


Thank you.
--
Davey.

Ann: Tacolneston pre-switchover retune event
 

On Mon, 04 Jul 2011 14:47:54 +0100
Andy Wade wrote:

On 04/07/2011 11:30, Davey wrote:

If this means what I think it does, how is the Tacolneston-receiving
population going to be told in advance? Apart from those of us who
see this message, that is.

MHEG captions, local news, etc. as already mentioned. Also more
recent DTT receivers should flag a service change automatically
through use of the network_change_notify_descriptor of the NIT.


I assume the second part of the second sentence of that paragraph means
that there is some sort of automatic update mechanism? I don't
know what NIT means in this context. Remember, I have lived outside
this country for many years (see below).

And, as someone who has only recently returned to this country, to
land in the middle of this ongoing event (aka 'chaos'), I would
love it if you could explain what the reference "To protect against
the Waltham DSO" means.

"Protect" in the present context means to prevent excessive
interference to one service from another. Here, it's co-channel
interference that we're talking about. Since thousands of individual
transmissions share 40-odd channels, every channel is re-used many
times over and significant co-channel interference can occur. This
is why DSO is such a complex and intricate juggling act (calling it
chaos is somewhat unfair) - changes at each transmitter have the
potential to affect several others, so before transmitter X can start
using channel Y, transmitter P might need to move a service from
channel Y to channel Z. Much of the work of broadcast service
planning is concerned with reducing such interference to acceptable
levels.

Waltham will use both channels 58 and 61 for a while after DSO so the
services from Tacolneston currently using those channels must be
re-located temporarily (hence the term 'parking channels') until
Taccy undergoes its own DSO about 3 months later.

HTH

As a punter, who just wants a simple life, I am afraid I stand by my
external view of it as chaotic, while accepting that it is a very
complex issue for those involved in it. I used to have the same problem
in my work, and I could never change the view of the ultimate user of
what I produced if it didn't work seamlessly. That's life. Now the boot
is on my foot!
Before leaving here, the only choice I had to make was whether to try
and move the aerial around to try to improve the new Channel 5
reception, or not bother. Now I find that I have to be a TV set
programmer as well. Goodness knows how totally non-technical people get
on with it. I read messages in this group that show that even people in
the business seem to get caught out by some of the changes, such as
satellite switchings.

Thank you for your explanations, they are much appreciated.
--
Davey.