🚀 go-pugleaf

On 16-Feb-11 17:07, Spartan613 wrote:
> "i|||| | | || ||| || |||| 2.0" <i| || ||| ||||| |||||| 2.0> wrote in
> message news:4d5afb33$0$12979$c3e8da3$9deca2c3@news.astraweb.com...
>>
>> "Spartan613" <nospam@buggeroff.com> wrote in message
>> news:sar6p.10509$gM3.7199@viwinnwfe01.internal.bigpond.com...
>>> The bloody picture is always pixilated and dropping out. What's the
>>> story? Lesser signal strength, or antenna located some different from
>>> the commercial channels? I never have this problem with the
>>> commercials or SBS.
>>>
>>
>> For ours ABC is the only rock solid reception.
>> Then it is a choice of get SBS and seven, or the others, or wait for
>> the plane/chopper to go away.
>>
>> It may not be lesser signal power, it could be other interference,
>> paths, reflections, echos
>> sometimes attenuating actually improves a channel.
>>
>> Basically the only suggestion for problems on the official sites is
>> get a professional $1000 antenna rig, it -may- be better.
>>
>> (ignoreable rant)
>>
>> Digital can be reliable but the modulation/encoding they use to get
>> more channels was meant for cable and makes it a noise detector
>> thousands of times more sensitive than if they had a couple fewer
>> channels or less definition.
>> Consumer reception was not a major consideration in the design.
>> this isn't a good explanation but gives some pointers.
>> http://tech.ebu.ch/docs/techreview/trev_296-dtt_qam.pdf
>> http://en.wikipedia.org/wiki/Quadrature_amplitude_modulation
>>
>> Theoretically 'only' 6db down to start with, a couple extra db for
>> phase, a couple for echo, a couple for varying paths, a couple from
>> the dog walking past and you fall of the digital cliff.
>> Your reception goes from a couple of pixelations a day to a dozen a
>> minute ---under the same conditions---.
>> Consumers be buggered, we want more channels to play more repeats , we
>> only care about people in metro areas with the wherewithall for
>> professional antenna installation .
>> Oh, lets make the first switchovers in the country.
>> :-(
>
> Thanks for the info.
>
> This appears to be something peculiar to the ABC, and not just where I'm
> living now. It also happened at the previous location, AND happens in
> another capital city I work in. So this is with different TVs in
> different cities.
In the capital cities ABC is on LCN 12 which can fall between the cracks 
if you have an old antenna that generally went from 2 - 10 then the UHF 
section. So check your antenna and cabling from dame into the house