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#1
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Thinking about my own TVs at home and lack of STBs on all 5 of them (eek!),
got me to wondering what will happen at the big analogue switch-off... Other than the obvious, what will hapen - specifically to the DVB broadcasts in terms of power and capacity? I heard that the signal power will be increased. I sthat true? Also, will there eventually be new MUXes when the transmitters are not busy transmitting analogue signals too, making space for more channels and the ability to improve bitrates on the existing ones? also... It strikes me that there must be millions of portable (and hand-held) TVs out there which rely on loop aerials and telescopic aerials used in locations where a rooftop aerial is unavailable or impossible to provide. Will hand-held TVs become a thing of the past? or will increased digital signal power mean that digital versions become practical? Bert |
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#2
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"Bert" MyFirstNameATTyahooDOTTCOMM wrote in message news:[email protected] Thinking about my own TVs at home and lack of STBs on all 5 of them (eek!), got me to wondering what will happen at the big analogue switch-off... Other than the obvious, what will hapen - specifically to the DVB broadcasts in terms of power and capacity? I heard that the signal power will be increased. I sthat true? Also, will there eventually be new MUXes when the transmitters are not busy transmitting analogue signals too, making space for more channels and the ability to improve bitrates on the existing ones? also... It strikes me that there must be millions of portable (and hand-held) TVs out there which rely on loop aerials and telescopic aerials used in locations where a rooftop aerial is unavailable or impossible to provide. Will hand-held TVs become a thing of the past? or will increased digital signal power mean that digital versions become practical? Bert power and capacity? -increased power -similar capacity, depends on 16/64qam handhelds/portables will work if you have adequate signal, probably will be better than now but still not designed for hand-hand use, particularly indoor. DVB-H could be around in the future for handheld. |
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#3
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"Bert" MyFirstNameATTyahooDOTTCOMM wrote in message news:[email protected] Thinking about my own TVs at home and lack of STBs on all 5 of them (eek!), got me to wondering what will happen at the big analogue switch-off... Other than the obvious, what will hapen - specifically to the DVB broadcasts in terms of power and capacity? I heard that the signal power will be increased. I sthat true? Also, will there eventually be new MUXes when the transmitters are not busy transmitting analogue signals too, making space for more channels and the ability to improve bitrates on the existing ones? also... It strikes me that there must be millions of portable (and hand-held) TVs out there which rely on loop aerials and telescopic aerials used in locations where a rooftop aerial is unavailable or impossible to provide. Will hand-held TVs become a thing of the past? or will increased digital signal power mean that digital versions become practical? Bert There is an ever increasing fusion of technolgies. Mobile phones are now capable of recieving streaming video and they don't have huge DVB type aerials. |
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#4
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Bert wrote:
........also... It strikes me that there must be millions of portable (and hand-held) TVs out there which rely on loop aerials and telescopic aerials used in locations where a rooftop aerial is unavailable or impossible to provide. Will hand-held TVs become a thing of the past? or will increased digital signal power mean that digital versions become practical? If anything handheld devices will become more prolific, and you'll have DVB-H for txing to mobiles. At the point when analogue UHF Tv eiter dies ar ceases to be significant, there are enhancements that happen to DTT (DVB-T), such as resolved protection ratio issues leading to more power, and more transmitters. Thus you get a much more stable DTT, an the ability (say) for things like portable DVD players to have a DTT reception facility. As for all the old analogue devices, including handheld lcd TVs with teloscolic aeriels? Most of these will be pretty past in by then, and possibly just get chucked. DTT converter boxes will become smaller, much cheaper and even battery powered, so you may even be able to glue one on the back. One issue that has been raised by a regular correspondent on uk.tech.broadcast in the past regards legacy distribution. The question ids this, whern all analogue TV tx has been dispensed with, will there still be UHF channels that are protected for domestic use as the output channels for STBs, VCRs DVDs and the like? |
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#5
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One issue that has been raised by a regular correspondent on uk.tech.broadcast in the past regards legacy distribution. The question ids this, whern all analogue TV tx has been dispensed with, will there still be UHF channels that are protected for domestic use as the output channels for STBs, VCRs DVDs and the like? If the goverment can't sell them ;o) |
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#6
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In article , tedjrr writes
Bert wrote: ........also... It strikes me that there must be millions of portable (and hand-held) TVs out there which rely on loop aerials and telescopic aerials used in locations where a rooftop aerial is unavailable or impossible to provide. Will hand-held TVs become a thing of the past? or will increased digital signal power mean that digital versions become practical? If anything handheld devices will become more prolific, and you'll have DVB-H for txing to mobiles. At the point when analogue UHF Tv eiter dies ar ceases to be significant, there are enhancements that happen to DTT (DVB-T), such as resolved protection ratio issues leading to more power, and more transmitters. Thus you get a much more stable DTT, an the ability (say) for things like portable DVD players to have a DTT reception facility. As for all the old analogue devices, including handheld lcd TVs with teloscolic aeriels? Most of these will be pretty past in by then, and possibly just get chucked. DTT converter boxes will become smaller, much cheaper and even battery powered, so you may even be able to glue one on the back. One issue that has been raised by a regular correspondent on uk.tech.broadcast in the past regards legacy distribution. The question ids this, whern all analogue TV tx has been dispensed with, will there still be UHF channels that are protected for domestic use as the output channels for STBs, VCRs DVDs and the like? Presumably the UHF tuners on TV sets will gradually disappear also as they won't be needed any more for receiving broadcasts, so linking devices by UHF will become a thing of the past anyway. -- Tim Mitchell |
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#7
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Presumably the UHF tuners on TV sets will gradually disappear also as they won't be needed any more for receiving broadcasts, so linking devices by UHF will become a thing of the past anyway. -- Tim Mitchell If the analogue tuners do disappear then distribution systems around houses ie for VCR, SAT, will need something more expensive than now Maybe the system will get replaced with digital, ie digital tuner, the only snag is you'll need a COFDM modulator and upconvertor, which in time will get cheaper. |
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#8
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"Tim Mitchell" wrote in message
... Presumably the UHF tuners on TV sets will gradually disappear also as they won't be needed any more for receiving broadcasts, so linking devices by UHF will become a thing of the past anyway. What about 'analogue' teletext? How am I going to read the subtitles on my opera laserdiscs if I need to buy a new digital only TV? -- Max Demian |
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#9
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dylan wrote:
Presumably the UHF tuners on TV sets will gradually disappear also as they won't be needed any more for receiving broadcasts, so linking devices by UHF will become a thing of the past anyway. -- Tim Mitchell If the analogue tuners do disappear then distribution systems around houses ie for VCR, SAT, will need something more expensive than now Maybe the system will get replaced with digital, ie digital tuner, the only snag is you'll need a COFDM modulator and upconvertor, which in time will get cheaper. You could use Wi-Fi for distribution around the house and UWB for close range stuff. -- Steve - www.digitalradiotech.co.uk - Digital Radio News & Info Find the cheapest Freeview, DAB & MP3 Player Prices: http://www.digitalradiotech.co.uk/fr..._receivers.htm http://www.digitalradiotech.co.uk/da...tal_radios.htm http://www.digitalradiotech.co.uk/mp...rs_1GB-5GB.htm http://www.digitalradiotech.co.uk/mp...e_capacity.htm |
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#10
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In article , Max Demian
writes "Tim Mitchell" wrote in message ... Presumably the UHF tuners on TV sets will gradually disappear also as they won't be needed any more for receiving broadcasts, so linking devices by UHF will become a thing of the past anyway. What about 'analogue' teletext? How am I going to read the subtitles on my opera laserdiscs if I need to buy a new digital only TV? Well you don't need a UHF tuner for analogue teletext... it will pass down composite video/scart just fine. You probably don't mean that, you mean that TV's will no longer include teletext decoders, which is possibly true. -- Tim Mitchell |
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