[opendtv] Re: Interesting Point
- From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Wed, 26 Oct 2005 17:19:09 -0400
John Shutt wrote:
> You are being misleading in your assumptions. In order
> for the newer generation echo cancellation chips to
> work properly, they require as much or more S/N as COFDM
> does.
If this were strictly true, then no way could a prototype
Samsung achieve Brazil E reception with only 19.9 dB of
C/N margin.
If you had the "perfect" equalizer, what you say wouldn't
hold. In an imperfect world, it will hold some times and
not other times.
> Also, the Sinclair Baltimore demonstrations in 1999
> proved that practically speaking, far area reception was
> equal between the two systems with equal transmitter
> power.
It would be nice to see these long range tests done again.
Bert
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