[opendtv] Re: Integrated DTV PSIP

  • From: "John Shutt" <shuttj@xxxxxxxxx>
  • To: <opendtv@xxxxxxxxxxxxx>
  • Date: Wed, 7 Dec 2005 12:22:38 -0500

Worst possible environment for 8-VSB?  When NTSC works very adequately at 
the Famous Schubin Site?

You want to see the worst possible environment for 8-VSB, watch 


----- Original Message ----- 
From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
To: <opendtv@xxxxxxxxxxxxx>
Sent: Wednesday, December 07, 2005 12:07 PM
Subject: [opendtv] Re: Integrated DTV PSIP

> The reason I think the Schubin apartment tests matter is
> that they address what used to be the very worst possible
> environment for 8-VSB. Meaning, 100 percent reflected
> signal, and in the "hole of the doughnut" zone of signal
> coverage, i.e. close to the transmitter site. This is where
> 8-VSB was known not to work. And in a high RF clutter
> environment to boot.

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