[opendtv] Re: China OKs its own terrestrial DTV spec
- From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Tue, 12 Sep 2006 17:11:42 -0400
Bob Miller wrote:
> No one is supporting the VSB option either with receivers
> or transmitters.
>
> It was included only to be "politically correct", to get
> past the argument.
...
> So I guess we will see a shoot-out between the two
> modulations with equal market conditions. But my source
> says its all over before it starts. No support whatsoever
> for the VSB option.
In spite of your "source," I think this should be an interesting
shootout if it does occur. The reason being, IIRC, the TS-COFDM scheme
uses a new training sequence sent instead of the GI, correct? So in
principle, this now works very much like their version of VSB.
Assuming they use the same, presumably perfectly designed training
sequence, for COFDM and for VSB, I'd be very curious indeed to see the
tradeoffs. Let's hope this is put to a real test, both urban and rural
settings.
Bert
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