[BC] TV Standards

[Robert Meuser]

That was a few years ago. I am sitting in my apartment which is an RF cavern and 
can get glorious HDTV (better than from cable) with a $29 set top antenna. All 
the reception is from reflections.

R

DANA PUOPOLO wrote:
> All I iknow is this....
> 
> At the NAB a few years ago, they had both systems there. 8-VSB required an
> outdoor antenna, 1000 feet of Comscope coax and a preamp to make an excellent
> picture. COFDM used a Radio Shack UHF bow tie antenna IN the booth!
> 
> At a private demonstration some time ago, Rep. Billy Tauzin was there. He
> asked why one system (8-VSB) required two antennas pointed out the windows of
> the room, while the other (COFDM) was using an antenna on the conference room
> table.
> 
> Finally, COFDM works in moving cars; 8-VSB does not.
> 
> Spectrally, they BOTH fit in a 6 mHz channel. There's no difference there.
> 
> Power wise, 8-VSB be a bit more efficent then COFDM, but a COFDM transmitter
> is much easier to align and maintain.
> 
> Not to mention that COFDM is the WORLDWIDE standard!  But then (of course)
> Eureka is the worldwide standard for digital radio and here in the US we
> mucked THAT one up too!
> 
> With regards to interlaced vs non interlaced, at the highest bit rates, our
> DTV syatem is interlaced. Period.
> 
> -D
> 
> 
> 
> ------ Original Message ------
> Received: Tue, 18 Oct 2005 08:50:50 AM PDT
> From: Robert Meuser <Robertm at broadcast.net>
> To: Broadcast Radio Mailing List <broadcast at radiolists.net>
> Subject: Re: [BC] TV Standards
> 
> The system is not inferior except in Dana's mind.
> 
> R
> 
> Barry Mishkind wrote:
> 
>>At 08:27 AM 10/18/2005, DANA PUOPOLO wrote
>>
>>
>>>Look at what the HDTV 'Grand Alliance' did. Because they refused to 
>>>wait SIX
>>>MONTHS, we got saddled with 8 VSB HDTV, which as about a quarter as 
>>>robust as
>>>COFDM, the system the rest of the world adopted.
>>>
>>>Because they couldn't wait, our HDTV system is INTERLACED, instead of 
>>>being
>>>progressive scanned (which would have made it compatible with computer
>>>video).
>>>
>>>Why does America do this over and over and over?
>>
>>
>>        You'll have to ask the NAB, I would think.
>>
>>        Any TV folks here who can tell us if
>>        it was merely six months that left the
>>        US with an inferior system?
>>
>>
>>
>>
>>_______________________________________________________________________
>>Barry Mishkind     -       Tucson, AZ    -   520-296-3797
>>
>>
>>
>>
>>
>>
>>
>>
>>
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> 
> 
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