Why are you ignoring the channel amplifer tuning. Even if the antenna receives channel 50 it still won't get to the wall plate.
Neither I not James Kirk ignored channel amplifier tuning. It was implicit in my statement:
That might suit larger apartment buildings in Brisbane that still happen to include channel 31 amongst their list of specifically catered for frequencies.
That wording, I had hoped, would be an obvious enough reference to technical readers to an MATV system still tuned so as amplify RF (be it an analogue TV signal or a digital TV signal) at, or in the vicinity of, channel 31.
As mentioned previously, it is only in relatively recent times in Brisbane that the community broadcaster ceased using its analogue allocation on channel 31, so unless an MATV system has been specifically reprogrammed/adjusted since then to exclude channel 31 (or is of a sophisticated channelised design that vets the characteristics of the RF signal before amplifying it) channel 31 may well still exist as an amplified RF channel for distribution throughout the large apartment block, alongside the other specifically catered for amplified channels. James Kirk agreed with me that channel 31 could still suit some MATV systems.
James Kirk then went on to make the broader (and, I would have thought, easy to follow) point that some antennas in use by viewers throughout Brisbane (not just viewers in apartments) are not designed for channel 50, and have a better response at channel 31, making channel 31 a better choice for Brisbane for the 3D broadcasts in a few months' time, from a receiving antenna viewpoint. For some reason you took issue with that technical point. (I speculate it may have been because you hadn't digested the earlier technical point about MATV systems and were confusing the two separate points.)
I implore you, alanh, to take more time to read and understand others' posts, before deciding to create posts of your own. This should make life easier for everyone concerned!
There is a new research project called HEVC which will reduce an MPEG-2 video stream to a quarter of the data rate for the same picture quality.
The High Efficiency Video Coding project is current, but has been in progress for some time. The codec under development is intended as an improvement on and successor to H.264/MPEG-4 AVC video encoding. General information about HEVC appears at: http://en.wikipedia....cy_Video_Coding
Edited by MLXXX, 27 April 2012 - 01:29 AM.