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Posted

7mate via Southern Cross in Northern Tasmania is running at 11.25Mbps 1080i. I think the differences in Hobart are because of the limited bandwidth available down there.

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Posted
7mate via Southern Cross in Northern Tasmania is running at 11.25Mbps 1080i. I think the differences in Hobart are because of the limited bandwidth available down there.

Please forgive me for my ignorance, but I imagined that knowing how advanced in technology Australia is, TV transmitters around Australia would easily have the capacity to transmitt around 10 HD channels at 15.5Mbps 1080p? :P

Posted

Formula 86 - There is not enough spectrum/bandwidth to make it happen.

Do a forum search you'll find out why this is so.

Thank you for time and effort for posting, it's much appreciated. Your safety exits are here and here. :) lol

Posted (edited)

This is on Seven, Prime is fine. I did a rescan (deleted all channels first) and it still says 7mate Coming Soon.

EDIT: The EPG on Seven (LCN 7) is wrong as well it says "2010 Melbourne Cup" and 7Two as no EPG at all.

Edited by DigitalTV-Whiz
Posted
Please forgive me for my ignorance, but I imagined that knowing how advanced in technology Australia is, TV transmitters around Australia would easily have the capacity to transmitt around 10 HD channels at 15.5Mbps 1080p? :P

Have a read in the HD Formats subforum for more on this (you may need to "show" more than 30 days of posts though).

The short answer is that there's no need for transmitting 1080p, because it depends on if you're talking about either:

- 1080p25, as in film, or drama shot on HD video, it has a low frame rate. This can be perfectly transmitted using our 1080i50 standard in Australia, pixel for pixel. For more information look up "segmented frame".

- 1080p50, which looks very similar to native 1080i50, without the minor interlacing artifacts (minor if you're using a good modern TV to deinterlace properly). The reason we don't need to transmit 1080p50 is because basically no cameras or editing can produce this format. You can't get BluRay discs in this format, so why expect digital TV to be even more advanced? Many TVs can't accept the 1080p50 format either so you'd be wasting your time broadcasting it. And finally the bitrate required to generate a similarly low number of artefacts, would be basically the same or a bit more. You wouldn't be saving any bitrate.

CK.

Posted
Please forgive me for my ignorance, but I imagined that knowing how advanced in technology Australia is, TV transmitters around Australia would easily have the capacity to transmitt around 10 HD channels at 15.5Mbps 1080p? :P

each area has up to 5 DTV Frequencies (excluding any community channels), these are each only able to do up to 23Mbps all up, in the case of the commercial networks, this has to be split between 2 SD channels and 1 HD Channel, in the ABC's case, it is split between 3 SD Channels and 1 HD channel. SBS has 19Mbps and splits this between 2 SD channels and 1 HD channel.

Posted
Why does my EPG say "7Mate. Coming Soon ......!"?

Mine was the same here in melbourne yesterday

ONLY if I pressed the Info button on my Panassonic

the EPG was opk though

back to normal now

Posted

Does anyone at 7mate realize that the classification supers (ie the 'PG' etc), that come up on the top left of screen after the ad break are in the wrong aspect ratio? They're stretched horizontally. That's not how they're meant to look.

  • 2 weeks later...
Posted
Does anyone at 7mate realize that the classification supers (ie the 'PG' etc), that come up on the top left of screen after the ad break are in the wrong aspect ratio? They're stretched horizontally. That's not how they're meant to look.

Yep, and I'm hoping this falls under the category of "whoops we put this station together in a hurry, please bear with us until 2011 when we get actual proper HD broadcasting back again".

And if it's any consolation, Ten went through this kind of messy transition twice before, in 2003 when they had no HD for six months, and again in 2007 when their TenSD service was 100% cross-converted from SD to HD and back again (ie, no native SD).

SBS did something similar too last year, in the lead up to The Ashes in HD, but it seems they didn't realise how horribly awful it was until people complained.

And who can forget ABC's HD travesty in 2005 when their (upscaled) HD service went from 1080i to 576p, and became utterly worse than their 576i channel. Of course the spokesmouthsmen all blamed it on "we can only do 576p and woe is us, we have to fit ABC2 now so that's why it looks worse" but of course they proved it a few months later when they fixed the cross-converter (nothing to do with the MPEG compression at all) and everyone else was comparing it to SBS's 576p the whole time, pointing and asking "why couldn't you just do that?"

CK.

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