Re: [backstage] BBC begins DVB-T2 test transmissions in preparation for HD on Freeview
There is a specifications document now at: http://www.dvb.org/technology/dvbt2/a122.tm3980r5.DVB-T2.pdf 2008/6/27 Matt Barber [EMAIL PROTECTED]: Anyone had any luck picking this up? I have a HDTV with a Freeview tuner, but have no idea if this is capable of picking up HD over the air... is it ATSC? I'm unsure of the specifics. --Matt -- Brian Butterworth http://www.ukfree.tv - independent digital television and switchover advice, since 2002
Re: [backstage] BBC begins DVB-T2 test transmissions in preparation for HD on Freeview
I just asked Hauppauge if any of their exiting kit would work with DVB-T2, and they said I'm afraid that we do not have any product that would support DVB-T2, at the same time there's no plan of releasing one, at least until 2009. Looks like a very closed trial to me! 2008/6/27 Steve Jolly [EMAIL PROTECTED]: Gareth Davis wrote: I'm sure someone down at KW will know chapter and verse on this, but AFAIK there are no IDTVs currently on the market that will be compatible with the test transmissions. Correct. There are no receivers currently available that are compatible with DVB-T2, be they STBs, IDTVs or DVB-T cards for PCs. If you want to receive HD on a PC, your best bet is to get a DVB-S compatible card and watch the BBC HD channel via satellite. :-) S - Sent via the backstage.bbc.co.uk discussion group. To unsubscribe, please visit http://backstage.bbc.co.uk/archives/2005/01/mailing_list.html. Unofficial list archive: http://www.mail-archive.com/backstage@lists.bbc.co.uk/ -- Brian Butterworth http://www.ukfree.tv - independent digital television and switchover advice, since 2002
Re: [backstage] BBC begins DVB-T2 test transmissions in preparation for HD on Freeview
Brian Butterworth wrote: I just asked Hauppauge if any of their exiting kit would work with DVB-T2, and they said I'm afraid that we do not have any product that would support DVB-T2, at the same time there's no plan of releasing one, at least until 2009. Looks like a very closed trial to me! It's not a trial, it's a test of the technology. And yes, it's a closed test. S - Sent via the backstage.bbc.co.uk discussion group. To unsubscribe, please visit http://backstage.bbc.co.uk/archives/2005/01/mailing_list.html. Unofficial list archive: http://www.mail-archive.com/backstage@lists.bbc.co.uk/
Re: [backstage] BBC begins DVB-T2 test transmissions in preparation for HD on Freeview
This is great news! What is the UHF channel number that this test service is being broadcast on from the Guildford transmitter? I'm presuming that this is in 256QAM mode, with about 30Mb/s with a few MPEG-4 (part 10) video streams? Will any of the existing DVB-T USB dongles will work in 256QAM mode? Are the other broadcast parameters now fixed, or will this test service be used with varying power levels and error correction levels to determine the best possible ones for UK broadcast? Is the BBC going to do some tests to see if the service is really going to work in domestic properties like it did with WHP056? http://www.bbc.co.uk/rd/pubs/whp/whp056.shtml 2008/6/27 Simon Thompson [EMAIL PROTECTED]: David Johnston wrote: I thought DVB-T2 was still a work-in-progress? Don't think any consumer boxes support it yet. (Or I may be horribly out of date.) -d 2008/6/27 Matt Barber [EMAIL PROTECTED] [EMAIL PROTECTED]: Anyone had any luck picking this up? I have a HDTV with a Freeview tuner, but have no idea if this is capable of picking up HD over the air... is it ATSC? I'm unsure of the specifics. --Matt DVB-T2 physical layer specification was ratified yesterday - and was on-air this morning (admittedly by the guys who were working on the specification). The RF specification does differ from Freeview (DVB-T), as does the physical layer and the signalling - so no, I doubt anyone has hacked it yet* and no, it isn't ATSC. Simon * although please feel free - the spec will be available on the ETSI website, free of charge, soon -- -- *Simon Thompson MEng MIET* Research Engineer (Electronics) PRINCE2TM Registered Practitioner *BBC Future Media and Technology* [EMAIL PROTECTED] -- Brian Butterworth http://www.ukfree.tv - independent digital television and switchover advice, since 2002
Re: [backstage] BBC begins DVB-T2 test transmissions in preparation for HD on Freeview
Brian Butterworth wrote: This is great news! What is the UHF channel number that this test service is being broadcast on from the Guildford transmitter? I'm presuming that this is in 256QAM mode, with about 30Mb/s with a few MPEG-4 (part 10) video streams? Will any of the existing DVB-T USB dongles will work in 256QAM mode? Are the other broadcast parameters now fixed, or will this test service be used with varying power levels and error correction levels to determine the best possible ones for UK broadcast? Is the BBC going to do some tests to see if the service is really going to work in domestic properties like it did with WHP056? http://www.bbc.co.uk/rd/pubs/whp/whp056.shtml Unfortunately DVB-T2 is more complicated than that. Each service within a multiplex can have its own transmission parameters, and there are a lot more parameters to choose from. Additionally, there are two input formats (i.e. you don't have to use Transport Stream) I believe the broadcast uses a single set of parameters with H264 video in MPEG2-TS - but will check for you. Also, I doubt any dongles will work. Simon -- *Simon Thompson MEng MIET * Research Engineer (Electronics) PRINCE2^TM Registered Practitioner *BBC Future Media and Technology*
[backstage] BBC begins DVB-T2 test transmissions in preparation for HD on Freeview
Anyone had any luck picking this up? I have a HDTV with a Freeview tuner, but have no idea if this is capable of picking up HD over the air... is it ATSC? I'm unsure of the specifics. --Matt
Re: [backstage] BBC begins DVB-T2 test transmissions in preparation for HD on Freeview
I thought DVB-T2 was still a work-in-progress? Don't think any consumer boxes support it yet. (Or I may be horribly out of date.) -d 2008/6/27 Matt Barber [EMAIL PROTECTED]: Anyone had any luck picking this up? I have a HDTV with a Freeview tuner, but have no idea if this is capable of picking up HD over the air... is it ATSC? I'm unsure of the specifics. --Matt - Sent via the backstage.bbc.co.uk discussion group. To unsubscribe, please visit http://backstage.bbc.co.uk/archives/2005/01/mailing_list.html. Unofficial list archive: http://www.mail-archive.com/backstage@lists.bbc.co.uk/
Re: [backstage] BBC begins DVB-T2 test transmissions in preparation for HD on Freeview
On Fri, Jun 27, 2008 at 4:32 PM, David Johnston [EMAIL PROTECTED] wrote: I thought DVB-T2 was still a work-in-progress? Don't think any consumer boxes support it yet. (Or I may be horribly out of date.) -d Not out of date, looks like you're right: Wikipedia says: Status of the DVB-T2 specification (early April 2008) - The DVB-T2 physical layer specification is complete and there will be no further technical enhancements. - The receiver VLSI chip design can be started with confidence in stability of specification (the DVB internal standard document is available to all DVB members including the leading chip companies) - Draft PSI/SI (program and system information) specification document agreed with the DVB-TM-GBS group.
Re: [backstage] BBC begins DVB-T2 test transmissions in preparation for HD on Freeview
David Johnston wrote: I thought DVB-T2 was still a work-in-progress? Don't think any consumer boxes support it yet. (Or I may be horribly out of date.) -d 2008/6/27 Matt Barber [EMAIL PROTECTED]: Anyone had any luck picking this up? I have a HDTV with a Freeview tuner, but have no idea if this is capable of picking up HD over the air... is it ATSC? I'm unsure of the specifics. --Matt DVB-T2 physical layer specification was ratified yesterday - and was on-air this morning (admittedly by the guys who were working on the specification). The RF specification does differ from Freeview (DVB-T), as does the physical layer and the signalling - so no, I doubt anyone has hacked it yet* and no, it isn't ATSC. Simon * although please feel free - the spec will be available on the ETSI website, free of charge, soon -- *Simon Thompson MEng MIET* Research Engineer (Electronics) PRINCE2^TM Registered Practitioner *BBC Future Media and Technology* mailto:[EMAIL PROTECTED]
RE: [backstage] BBC begins DVB-T2 test transmissions in preparation for HD on Freeview
For those of you that missed the announcement: http://www.bbc.co.uk/pressoffice/pressreleases/stories/2008/06_june/27/h d.shtml I'm sure someone down at KW will know chapter and verse on this, but AFAIK there are no IDTVs currently on the market that will be compatible with the test transmissions. Most HD IDTVs have only SD DVB decoders, and the handful that do have HD decoders receive HD using MPEG2 compression over the usual DVB-T transport layer (as used elsewhere in the world like Australia). Somewhere else in Europe does use h264 for DVB HD services (France maybe?) but over standard DVB-T not DVB-T2. Guildford could be a world first. -- Gareth Davis | Production Systems Specialist World Service Future Media, Digital Delivery Team - Part of BBC Global News Division * http://www.bbcworldservice.com/ http://www.bbcworldservice.com/ * 702NE Bush House, Strand, London, WC2B 4PH * 02 71285 (internal) * +44 (0)20 7557 1285 (external) * [EMAIL PROTECTED] From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Matt Barber Sent: 27 June 2008 16:08 To: backstage@lists.bbc.co.uk Subject: [backstage] BBC begins DVB-T2 test transmissions in preparation for HD on Freeview Anyone had any luck picking this up? I have a HDTV with a Freeview tuner, but have no idea if this is capable of picking up HD over the air... is it ATSC? I'm unsure of the specifics. --Matt
