[opendtv] Re: SFNs
- From: Doug McDonald <mcdonald@xxxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Sat, 21 Aug 2004 07:31:54 -0500
Manfredi, Albert E wrote:
> The publication of ATSC Standard A/110 brings up the question
> of the SFN vs big stick tradeoff again.
>
> NIST provides a useful empirical model of RF propagation in
> urban and suburban environments at this site:
>
> http://w3.antd.nist.gov/wctg/manet/calcmodels_dstlr.pdf
>
> Among these is the so-called CCIR, or now ITU-R, model.
>
> Let's hypothesize a 3-small-stick SFN.
I don't think that is the idea, at least not in Europe.
The idea is a transmitter, transmitting the exact same bits,
on each cell phone tower in the whole country.
If cell phones work, so should this. If cell phones
are cost effective, so should this be.
And the price would be less per person than cell phone
use, since there would only be one transmitter
per tower, and all receivers receive the same stuff.
Doug McDonald
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