[opendtv] Re: How important are new Codecs wrt OTA Broadcasting?

  • From: William Smith <wsmith@xxxxxxx>
  • To: opendtv@xxxxxxxxxxxxx
  • Date: Wed, 22 Feb 2006 16:44:35 -0500

Using some of them in our datacast systems... Still have problems with 
multipath in Eastern KY.


Manfredi, Albert E wrote:
> William Smith wrote:
> 
> 
>>So far the only portable and mobile receiver (if you want
>>to call them that) are the Mini ITX PC systems we are
>>building as datacast units with BBTI cards. (The Tuner
>>App will decode and display HD). They do run on 12V..
>>Batteries not included..
> 
> 
> (The least they should do is include batteries!)
> 
> There are a few LG 5th Gen-based USB cards available, that we discussed
> a few weeks ago. One of the journal scribes tested one in Northern VA,
> and he says he could straightforwardly receive all Baltimore stations
> with a simple indoor antenna.
> 
>>From a post of mine on 8 February (no longer available at that site, and
> even that makes me wonder why it was yanked away):
> 
> <http://www.tvtechnology.com/dlrf/one.php?id=3D3D1082>
> 
> ------------Quoting---------------
> New ATSC USB Tuner Includes LG 5G Chip
> ...
> The tuner includes the new LG/Zenith 5th generation VSB decoder chip.
> This is the one that convinced VSB skeptics that 8-VSB might work after
> all.
> ...
> Wallace reported the box is great at pulling in signals. From his
> location south of Washington D.C., he was able to pull in Baltimore DTV
> stations using a Silver Sensor antenna indoors. Unfortunately, he
> experienced problems with the receiver and its software crashing his
> computer on certain channels. ... "Can you just imagine the angry people
> calling in to the station and sputtering about how 'your TV channel
> crashes my computer!!'"
> ------------end quote-------------
> 
> Given that the closest you can come to Baltimore stations in Northern VA
> is just under 40 miles as the crow flies, and that's only if you're
> hugging the Potomac River banks, I'd say that makes for a pretty
> respectable "portable" capability. And who knows, he was probably closer
> to 50 or more miles from Baltimore, in fact.
> 
> But I agree that a PC solution is not necessarily the simplest form of
> "portable." We were watching some of the Olympics in the kitchen last
> night, on a tiny screen, lousy grainy picture. The goal is a similar
> set, not necessarily the lousy grainy picture(!).
> 
> Bert
>  
>  
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-- 
----
William B. Smith - Special Projects Engineer  Email: wsmith@xxxxxxx
Technology Division                           ----------------------
Kentucky Educational Television
600 Cooper Drive
Lexington, Ky. 40502-2296
Ph. 859-258-7088  Fax 859-258-7399
 
 
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