Sun Oct 5 20:56:22 EDT 2008
<<On Sun, 5 Oct 2008 13:50:07 -0400, "Dan.Strassberg" <email@example.com> said:
> Yes, Canada adopted the Eureka-147 system a number of years ago (my
> guess, at least 10 years). Eureka-147 uses L-Band (around 1.4 GHz, I
In Canada. Other countries use different bands. The countries where
it's been successful generally use Band III (VHF-high), as those
countries have moved television to UHF.
> (I don't know whether it's frequency division, time division, or
> orthogonal frequency division) divides the signal among the various
It's OFDM. The Wikipedia article explains the precise technique (jump
to the "Technology" section -- most of the rest of the article was
written by British anti-Eureka anoraks).
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