[opendtv] Re: Public M/H information

  • From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
  • To: <opendtv@xxxxxxxxxxxxx>
  • Date: Mon, 22 Dec 2008 19:25:09 -0500

Tom Barry wrote:

> If you are just used to analog TV that wouldn't be true. But
> after seeing blu ray or quality HD a bit then even a properly
> upscaled DVD is not quite good enough when sitting close to a
> 1080p large screen. This also makes me wonder about the utility
> of back seat auto displays since I guess people sit pretty
> close to them (I've never had one). But if it's just kids in
> the back seat maybe they are fairly forgiving about video
> quality.
> Upscaling 240p on a large HD display will look horrid. Though I
> suppose it might still be a useful fall-back if reception
> conditions did not permit the HD channel.

I watch RAI and TF1 news at ~300-400 Kb/s, full screen, sitting up to a
PC, and it's soft but not so bad. TF1 uses WMP, RAI uses Flash, the
quality is similar. I figure, sitting a few screen heights away from an
HDTV should not be any worse. The episodes on www.abc.com look much
better by comparison. I don't know the bit rate, though.

If M/H is anything like A-VSB, in the most robust mode, the C/N margin
has to be ~4 dB, with a single receive antenna. That would be great for
degraded conditions or for DXing stations from far away.

You can UNSUBSCRIBE from the OpenDTV list in two ways:

- Using the UNSUBSCRIBE command in your user configuration settings at 

- By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word 
unsubscribe in the subject line.

Other related posts: