Blurring Analogue channels

Hi All

(I know this is a Digital group but I feel it is digital related)

I've notice over the last several months that analogue terrestrial TV
picture quality has got worse. In particular ‘blurring’, blurring like
you get on an LCD TV. BBC1 & 2 are quite obvious.
What’s happened to quality standards? Has any one else noticed this?

I use to get an excellent analogue picture having a clear view of the
Crystal Palace transmitter. It’s better than digital which I get as
well. The colour and sound seem much better. For example faces show
(not now so much with the blurring) all the detail and imperfections.

Has anyone know of why there is ‘blurring’ on the analogue channels
theses days?

Chris…… S.london

wrote in message
...
Hi All

(I know this is a Digital group but I feel it is digital related)

I've notice over the last several months that analogue terrestrial TV
picture quality has got worse. In particular ‘blurring’, blurring like
you get on an LCD TV. BBC1 & 2 are quite obvious.
What’s happened to quality standards? Has any one else noticed this?

I use to get an excellent analogue picture having a clear view of the
Crystal Palace transmitter. It’s better than digital which I get as
well. The colour and sound seem much better. For example faces show
(not now so much with the blurring) all the detail and imperfections.

Has anyone know of why there is ‘blurring’ on the analogue channels
theses days?

Chris…… S.london

This may have no bearing on your problem as you say it has
gone on for months, but this *week* we have been experiencing
enhanced UHF propagation conditions that has caused severe
co-channel interference in many areas. This CCI manifests itself
in different ways, e.g. herring-bone pattern or horizontal lines on
analogue pictures, heterodyne tone on sound. When a digital MUX is
co-channel with an
analogue picture you are trying to watch, the effect is almost
identical to a weak signal i.e.. snow on picture.

--
Graham

%Profound_observation%

On Feb 20, 11:00 pm, Edster wrote:


They will be using digital cameras and digital editing.

And digital distribution for many years.

wrote:
Hi All

(I know this is a Digital group but I feel it is digital related)

I've notice over the last several months that analogue terrestrial TV
picture quality has got worse. In particular ‘blurring’, blurring like
you get on an LCD TV. BBC1 & 2 are quite obvious.
What’s happened to quality standards? Has any one else noticed this?

I use to get an excellent analogue picture having a clear view of the
Crystal Palace transmitter. It’s better than digital which I get as
well. The colour and sound seem much better. For example faces show
(not now so much with the blurring) all the detail and imperfections.

Has anyone know of why there is ‘blurring’ on the analogue channels
theses days?

BBC2 (Sutton Coldfield) is often blurred here due to slight mistuning. I
don't know if it's at the transmitter or local distribution end?

(kim)

Edster wrote:
" wrote:

Has anyone know of why there is ‘blurring’ on the analogue channels
theses days?

They will be using digital cameras and digital editing.

It's got very little to do with 'digital' cameras, do you mean CCD rather than
tube BTW ?

It's digital *compression* that's causes the problems, not 'digital' per se.
In fact the Tx path has had digital elements in it for well over 30 years now.

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

I think we also need to know the age of the analogue tv. Some which do not
use digital channel tuning, and have avc are being pulled off tune by the
very strong digital channels next door, as it were.
Not that I can see it, but a friend with a portable from the 80s has this
problem. In fact he gets less blurring on an indoor aerial!

Brian

--
Brian Gaff....Note, this account does not accept Bcc: email.
graphics are great, but the blind can't hear them
Email:
__________________________________________________ __________________________________________________ __________


"Edster" wrote in message
...
" wrote:


Hi All

(I know this is a Digital group but I feel it is digital related)

I've notice over the last several months that analogue terrestrial TV
picture quality has got worse. In particular 'blurring', blurring like
you get on an LCD TV. BBC1 & 2 are quite obvious.
What's happened to quality standards? Has any one else noticed this?

I use to get an excellent analogue picture having a clear view of the
Crystal Palace transmitter. It's better than digital which I get as
well. The colour and sound seem much better. For example faces show
(not now so much with the blurring) all the detail and imperfections.

Has anyone know of why there is 'blurring' on the analogue channels
theses days?

Chris.. S.london

They will be using digital cameras and digital editing.

The TV is approx 3 years old. I not not get this problem with DVD.
Not sure if I made this part clear. The blurring only occurs during
movement.

Are the TV companies using different technolgy to transfer films/show
for broadcasting.
I have no idea as to how they get I film or recorded drama for example
ready for broadcasting.
I get the feeling from this blurring (not sure what the technical term
is) is a result of the method of transfer.
Does any one know if its changed recently?

Chris...

During movement? Sounds a bit strange to me. This sort of effect used to
occur in the old days of standard conversion by analogue means as I recall.

Brian

--
Brian Gaff -
Note:- In order to reduce spam, any email without 'Brian Gaff'
in the display name may be lost.
Blind user, so no pictures please!
wrote in message
...
The TV is approx 3 years old. I not not get this problem with DVD.
Not sure if I made this part clear. The blurring only occurs during
movement.

Are the TV companies using different technolgy to transfer films/show
for broadcasting.
I have no idea as to how they get I film or recorded drama for example
ready for broadcasting.
I get the feeling from this blurring (not sure what the technical term
is) is a result of the method of transfer.
Does any one know if its changed recently?

Chris...

wrote in message
...
The TV is approx 3 years old. I not not get this problem with DVD.
Not sure if I made this part clear. The blurring only occurs during
movement.

Are the TV companies using different technolgy to transfer films/show
for broadcasting.
I have no idea as to how they get I film or recorded drama for example
ready for broadcasting.
I get the feeling from this blurring (not sure what the technical term
is) is a result of the method of transfer.
Does any one know if its changed recently?

Chris...

It's probebly due to digital signal processing within your reciever.
Even CRT sets process the picture to death, Philips Pixel Plus
for example. Look in the setup menu for features like "picture noise
reduction", and try turning them off.
--
Graham

%Profound_observation%

wrote:
The TV is approx 3 years old. I not not get this problem with DVD.
Not sure if I made this part clear. The blurring only occurs during
movement.


This is NOT a fault it is a feature....! Digital TV can use of the fact
that often large parts of the picture are stationary, therefore it needs
to transmit the data relating to that area less often. This means that
the size of the pipe, for want of a better description can be smaller
and they can fit in more channels. The down side is when you watch the
football and the camera pans, is that suddenly a lot more information is
required but can't be sent due to the small pipe, hence the blur.

James