I'm sick of freeview not coping with interference

In message , Mark Carver
writes
wrote:
For the last few days we've had some bad electrical interference near where
I live. We haven't tracked it down yet but the upshot is its pretty much
killing some of the freeview channels making them either like a slideshow
or no picture at all. So we switch to analogue and it works fine. Sure theres
a lot of noise in the picture but its still perfectly watchable.
If freeview can't cope with interference what bloody use is it other
than
offering a load of extra channels hardly anyone watches?

DVB-T will not work properly if it's corrupted by interference. By your
own admission you have a poor signal, so that will be vulnerable to
external interference. Is that because of an inadequate receiving
system (such as an indoor aerial, or knackered roof aerial), or just
that you are currently not in a DTT served area, and you're attempting
long distance reception ?

Post DSO transmissions are typically 10dB higher in power and employ 8k
COFDM modulation, that does offer marginally better protection against
interference, so when DSO hits your area things should improve, but
it's still a good idea to sort your aerial out. You wouldn't expect a
Rolls Royce to run properly on chip fat !
No, but the point is that if a diesel RR existed, it would run on chip
fat, it might not give the best performance but it would run and be
usable.

My experience is that even with a fully sorted aerial , DVB-T is
dreadful to watch in the presence of local electrical interference.

Analogue just soldiers on, albeit with some picture noise but, as the OP
said, still very watchable.
--
Clint Sharp

On Sat, 31 Oct 2009 14:22:46 +0000 (GMT)
"Dave Plowman (News)" wrote:
You want a description? Ok - snow with some herringbone patterns. The
suddenly it'll vanish. In fact last night it didn't even appear.

Then get your aerial sorted.

Are you completely stupid or just trolling? As I've already said more than
once there is nothing wrong with my reception 99% or the time. Usually its
100% perfect analogue or digital - the interference is intermittent and
severe on both TV *and* radio. So tell me genius - whats your diagnosis now?

My point is that I can still watch analogue under this interference however
both Freeview and DAB die which doesn't say a lot for the supposed rubustness
of digital systems.

B2003

In article ,
wrote:
On Sat, 31 Oct 2009 14:22:46 +0000 (GMT)
"Dave Plowman (News)" wrote:
You want a description? Ok - snow with some herringbone patterns. The
suddenly it'll vanish. In fact last night it didn't even appear.

Then get your aerial sorted.

Are you completely stupid or just trolling? As I've already said more
than once there is nothing wrong with my reception 99% or the time.
Usually its 100% perfect analogue or digital - the interference is
intermittent and severe on both TV *and* radio. So tell me genius -
whats your diagnosis now?

Are you stupid or just trolling? If you're getting 'snow' on an analogue
picture it's due to low signal strength. Not interference.

My point is that I can still watch analogue under this interference
however both Freeview and DAB die which doesn't say a lot for the
supposed rubustness of digital systems.

So what you're saying is you'll happily put up with any old rubbish to
prove your prejudice?

--
*The problem with the gene pool is that there is no lifeguard *

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

wrote in message ...
On Sat, 31 Oct 2009 14:22:46 +0000 (GMT)
"Dave Plowman (News)" wrote:
You want a description? Ok - snow with some herringbone patterns. The
suddenly it'll vanish. In fact last night it didn't even appear.

Then get your aerial sorted.

Are you completely stupid or just trolling? As I've already said more than
once there is nothing wrong with my reception 99% or the time. Usually its
100% perfect analogue or digital - the interference is intermittent and
severe on both TV *and* radio. So tell me genius - whats your diagnosis
now?

My point is that I can still watch analogue under this interference
however
both Freeview and DAB die which doesn't say a lot for the supposed
rubustness
of digital systems.



Except that as has been pointed out half a dozen times, you're receiving 2K
modulation at 'one tenth' of its intended power (and you say you're not
trolling).. when that's sorted come back and tell us then if you still have
any problems.

On Sun, 01 Nov 2009 10:30:38 +0000 (GMT)
"Dave Plowman (News)" wrote:
In article ,
wrote:
On Sat, 31 Oct 2009 14:22:46 +0000 (GMT)
"Dave Plowman (News)" wrote:
You want a description? Ok - snow with some herringbone patterns. The
suddenly it'll vanish. In fact last night it didn't even appear.

Then get your aerial sorted.

Are you completely stupid or just trolling? As I've already said more
than once there is nothing wrong with my reception 99% or the time.
Usually its 100% perfect analogue or digital - the interference is
intermittent and severe on both TV *and* radio. So tell me genius -
whats your diagnosis now?

Are you stupid or just trolling? If you're getting 'snow' on an analogue
picture it's due to low signal strength. Not interference.

Right, so someone is dropped the output of crystal palace and every other
relay and radio transmitter on odd occasions in the evening are they??
I said snow, I didn't say it looked like low signal strength snow. Its
more "regular" than that and the radio interference sounds like an
unsupressed motor.

Christ you're a ****ing moron , why not **** off back under your bridge
and only reply if you have something worthwhile to say.

So what you're saying is you'll happily put up with any old rubbish to
prove your prejudice?

Blah blah

B2003

On Sun, 01 Nov 2009 10:37:50 GMT
"Ivan" wrote:
My point is that I can still watch analogue under this interference
however
both Freeview and DAB die which doesn't say a lot for the supposed
rubustness
of digital systems.



Except that as has been pointed out half a dozen times, you're receiving 2K
modulation at 'one tenth' of its intended power (and you say you're not
trolling).. when that's sorted come back and tell us then if you still have
any problems.

And that explains why its knocking out full power DAB signals too does it?
It has nothing to do with digital systems being fundamentally flawed when
it comes to dealing with severe inteference that analogue can handle then?

B2003

In article ,
wrote:
Except that as has been pointed out half a dozen times, you're
receiving 2K modulation at 'one tenth' of its intended power (and you
say you're not trolling).. when that's sorted come back and tell us
then if you still have any problems.

And that explains why its knocking out full power DAB signals too does
it? It has nothing to do with digital systems being fundamentally flawed
when it comes to dealing with severe inteference that analogue can
handle then?

Guaranteed you've got the same quality of aerial installation for DAB as
you have for TV...

--
*Great groups from little icons grow *

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

In article ,
wrote:
Are you stupid or just trolling? If you're getting 'snow' on an analogue
picture it's due to low signal strength. Not interference.

Right, so someone is dropped the output of crystal palace and every other
relay and radio transmitter on odd occasions in the evening are they??
I said snow, I didn't say it looked like low signal strength snow. Its
more "regular" than that and the radio interference sounds like an
unsupressed motor.

Christ you're a ****ing moron , why not **** off back under your bridge
and only reply if you have something worthwhile to say.

Interesting you're now such an expert on interference but haven't a clue
about how to deal with it.

Snow on an analogue picture is random noise caused by a poor signal.

--
*Some days you're the dog, some days the hydrant.

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

On Sun, 01 Nov 2009 13:24:20 +0000 (GMT)
"Dave Plowman (News)" wrote:
Christ you're a ****ing moron , why not **** off back under your bridge
and only reply if you have something worthwhile to say.

Interesting you're now such an expert on interference but haven't a clue
about how to deal with it.

Give me your great insight then. Having today found out our neighbour is
having the same problem perhaps you're going to suggest his antenna and
cable are **** too?


Snow on an analogue picture is random noise caused by a poor signal.

You seriously believe thats the only possible cause of snow? That rather
explains everything.

B2003

On Sun, 1 Nov 2009 09:51:38 +0000
Clint Sharp wrote:
Analogue just soldiers on, albeit with some picture noise but, as the OP
said, still very watchable.

Quite. But for some reason some people on here refuse to believe it. Must
be a herd mentality head in the sand scenario again.

B2003