[opendtv] Re: Multi-band TV receiver and DVB-H
- From: Bob Miller <bob@xxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Wed, 26 May 2004 13:36:26 -0400
John Shutt wrote:
>Bert,
>
>You seem to imply that DVB-H is only broadcast separately from DTT. It can
>be, but it is also designed to be included as part of a normal DVB-T
>transmission, and that is where the power of DVB-H comes in.
>
><http://www.dvb.org/documents/white-papers/wp07.DVB-H.final.pdf>
>
>"Like DVB-T, DVB-H can be used in 6, 7 and 8 MHz channel environments.
>However, a 5MHz option is also specified for use in non-broadcast
>environments. A key initial requirement, and an amazing feature of DVB-H, is
>that it can co-exist with DVB-T in the same multiplex. Thus, an operator can
>choose to have 2 DVB-T services and one DVB-H service in the same overall
>DVB-T multiplex."
>
>and
>
><http://www.dvb.org/documents//DVB-H_Outline.pdf>
>
>" Usage scenarios:
>.The following slides give examples of network configurations
>.Existing DVB-T network with indoor coverage and DVB-H sharing MUX
>.DVB-T and DVB-H using hierarchical transmission in the same RF channel;
>DVB-H on the high priority stream
>.DVB-H dedicated network which may, e.g., use 4k OFDM"
>
>Only the latter is possible here, and that option will render it to be a
>subscription-only service.
>
>John Shutt
>
>
>----- Original Message -----
>From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
>To: "OpenDTV (E-mail)" <opendtv@xxxxxxxxxxxxx>
>Sent: Wednesday, May 26, 2004 12:05 PM
>Subject: [opendtv] Multi-band TV receiver and DVB-H
>
>
>
>
>>Interesting article. Since DVB-H is transmitted over separate channels
>>from DTT, no reason why it can't be deployed here as easily as it can
>>be in Europe.
>>
>>
It is deployed here in Pittsburgh on a 5 MHz channel with three
transmitters in an SFN.
Bob Miller
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