[opendtv] Re: TV Technology: FCC Extends Channel-Sharing
- From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
- To: "opendtv@xxxxxxxxxxxxx" <opendtv@xxxxxxxxxxxxx>
- Date: Tue, 4 Apr 2017 02:45:50 +0000
Craig Birkmaier wrote:
ATSC 1.0 cannot serve sub markets - stations use a single transmitter to
cover an entire market.
You are simply wrong, Craig. ATSC 1.0 and ATSC 3.0 can both, in principle,
insert different ads for different TV viewers. One way to do this is to
transmit the ads simultaneously, with different headers that each TV can parse.
The main program might carry the "default" ad, and the other targeted ads are
sent with different headers. Of course, this would make the ads less sharp than
the main program, because you're sharing the same bandwidth for more ad content.
Another way is to transmit ads in non-real-time and have the TV set store them,
then insert at the right time.
Either way, the CE vendors would have to build such features into their
software.
But neither ATSC 1.0 not ATSC 3.0 can create tiny little broadcast coverage
areas within a single market, on a single frequency channel, without running
into large areas of co-channel interference. SFNs depend on the same content to
be transmitted, Craig. Yes, even the same set of ads, with their individual
headers, if ads are inserted as I described above. If you don't transmit the
same content, then it's suddenly not an SFN. It becomes nothing more than a
small scale version of what we now have among different markets, where you
require some buffer zone between transmitters on the same frequency channel.
If you want LPTV type of service, it has to be done the same way(s). And please
do not come back with your vague "with a properly designed infrastructure."
Check your facts first. **Post something detailed that proves these wild
assertions**, or refrain from making them.
Aside from SFNs (which you seem to not understand), you have yet to mention
anything that requires a "utility" or ATSC 3.0.
Bert
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Other related posts:
- » [opendtv] TV Technology: FCC Extends Channel-Sharing- Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Ron Economos
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing - Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC Extends Channel-Sharing- Manfredi, Albert E