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DAB sounds worse than FM wrote:
Moldy wrote: On Thu, 11 Mar 2004 17:04:31 -0000, "DAB sounds worse than FM" wrote: Andrew wrote: On Thu, 11 Mar 2004 16:15:00 -0000, "DAB sounds worse than FM" wrote: Broadband bandwidth is going up at a similar rate to Moore's Law How do you work that one out? The fastest consumer service you could get two years ago was 2Mbit, and today its still the same, and still too expensive. Maybe not as quickly as Moore's Law, but historically it's gone up pretty quickly. The modem connection speeds I've used are as follows: 1995 - 33.6kbps 199? - 56kbps 2003 - 512kbps so in 8 years it's gone up by a factor of 512/33.6 = 15.23. I've seen different definitions of Moore's Law, but one definition is doubling speed every 2 years, and increasing by 15.23 in 8 years is actually very close to Moore's Law: 33.6 x 2 x 2 x 2 x 2 = 537.6kbps For me to keep up with Moore's Law I'd have to get a 2Mbps broadband connection by 2007, which I'd say is almost a certainty. The only problem with your calculation is that you are working it through based on the speed YOU were using, not the maximum speed which was available. If you use the maximum speed available then where do you draw the line with cost? I'm sure that if someone had the money they could have had some stupidly expensive link installed just for surfing the net at home even in 1995, although if you remember back to 1995 then the web was so frigging slow that it would have been a bit of a waste of time. So using relatively inexpensive, widely available possibilities then back in 1995 ISDN at 128kbps would probably have been the state of the art above which things would become unfeasibly expensive. In 2003, I dunno, would you say 2 Mbps would be state of the art broadband speed while still being affordable? That makes the increase in speed by a factor of 2000/128 = 15.623, which almost exactly the same as 512k/33.6k. Anyway, if you want to prove me wrong then provide some figures. It's far too easy just to criticise people without providing any figures to back up your claims. Speaking from my own usage I've moved home twice in this time - here's my stats: I had 56k in 98, 64/128k in 99, 600k in 2000 (cable), 1Mbit in 2002(cable), 512k in 2003, 1Mbit in 2004 (gaydsl). At no time did I pay more than £50 a month, which I consider to be absolute maximum. Considering that the original trials from c1997-98 were done at 2Mbit I don't really consider this any sort of progress, I had to take a step BACK due to moving from a cabled area to an ADSL area, and in 2004 I finally got back the same speed I had in the first half of 2002. No doubt it will happen eventually, and indeed already is in a very few places through Homechoice and 2.3Mbit Videostream HDSL, however to compare increase in connection rates with increase in CPU speeds is a fallacy. My increase in 2 years has been nil, in 4 less than double. At the end of the day the only DSL progress has been Datastream, and 1Mbit IPStream, even that took nearly 4 years to be released. BT Wholesale have no intention of breaking the 2Mbit barrier, while ntl: are testing 3Mbit burst speeds in Guildford BT's new burst product will not break this psychological 2Mbit barrier. Anyway I have spoken extensively about this on adslguide's forums, proposing a PAYG as fast as your phone line will tolerate package, however people seem more concerned about remote areas getting DSL than any sort of progress towards real broadband so.... Igni |
Ignition wrote:
Speaking from my own usage I've moved home twice in this time - here's my stats: I had 56k in 98, 64/128k in 99, 600k in 2000 (cable), 1Mbit in 2002(cable), 512k in 2003, 1Mbit in 2004 (gaydsl). At no time did I pay more than £50 a month, which I consider to be absolute maximum. 1 Mbps / 56 kbps = 17.86 2004 - 1998 = 6 years Moore's Law predicts a doubling of speed every 2 years, so in 6 years you get: 56kbps x 2 x 2 x 2 = 448 kbps So you're more than twice ahead of Moore's Law. I don't really see what you're complaining about given that some areas can't even get 512kbps, let alone 1Mbps. Considering that the original trials from c1997-98 were done at 2Mbit IIRC the form of ADSL used in the UK goes up to 8 Mbps, but due to the broadband business models they limit your bandwidth. I don't really consider this any sort of progress, 18 times faster in 6 years is not any sort of progress?? I suggest you look in the dictionary for the word 'progress'. No doubt it will happen eventually, and indeed already is in a very few places through Homechoice and 2.3Mbit Videostream HDSL, however to compare increase in connection rates with increase in CPU speeds is a fallacy. Up to now it seems to be standing up to scrutiny, and I'll tell you why: Fibre optic cables that are used for the internet backbone can handle virtually unlimited bandwidth, but to harness the bandwidth that fibre optics allow you need to increase the speed of the processors that process the signals being carried on the fibre optic cables, so doubling the speeds of processors will allow the data bandwidths to increase roughly proportionally with CPU speed. And just to point out that the original form of Moore's Law was that the number of transistors you can fit into a given area of silicon doubles every 2 years (IIRC) (and because the electrons have a shorter distance to travel they can switch faster), so PC CPUs are not the only CPUs, and the dedicated network processors will also have smaller transistors that switch faster, just like your 2.x GHz Athlon XP in your PC can. My increase in 2 years has been nil, in 4 less than double. An increase by a factor of 18 in 6 years, that's excellent. What do you need this bandwidth for anyway? At the end of the day the only DSL progress has been Datastream, and 1Mbit IPStream, even that took nearly 4 years to be released. BT Wholesale have no intention of breaking the 2Mbit barrier, while ntl: are testing 3Mbit burst speeds in Guildford BT's new burst product will not break this psychological 2Mbit barrier. Anyway I have spoken extensively about this on adslguide's forums, Why doesn't that surprise me? proposing a PAYG as fast as your phone line will tolerate package, however people seem more concerned about remote areas getting DSL than any sort of progress towards real broadband so.... You have to put yourself in the shoes of those without broadband at all, and then you might just have the humility to realise that you're not doing at all badly IMO. -- Steve - http://www.digitalradiotech.co.uk/ - Digital Radio News & Info DAB sounds worse than Freeview, digital satellite, cable, broadband internet and FM |
"DAB sounds worse than FM" wrote in message snip Maybe not as quickly as Moore's Law, but historically it's gone up pretty quickly. The modem connection speeds I've used are as follows: 1995 - 33.6kbps 199? - 56kbps 2003 - 512kbps Over POTS 1978 - 300bps 1982 - 1200bps 1985 - 9600bps v32 1992 - 14k4bps v32b 1995 - 28k8bps v34 1996 - 33k4bps for analog injection this is the limit according to Shannon's law. 1997 - 56kbps (NOT end to end) ISDN 1990 - 128kbps ADSL current - up to about 2Mb over local loop, but as you go faster the range falls. Moore's Law says the number of gates on a chip (CPU or memory) doubles about every 18 months. This has held pretty well from the first Intel chips (4004 & 1103 in ~1970) to date. Various predictions that the laws of physics will run out for chips have been made for ~30 years, but so far the fabs have outsmarted the cynics. Predictions of the limit of how much information you can get down 2 - 10km of thin single core twisted pair wire are more scientifically based, and IMHO unlikely to be outsmarted. The realistic way to go much faster (Gb's) is fibre to the kerb. so in 8 years it's gone up by a factor of 512/33.6 = 15.23. I've seen different definitions of Moore's Law, but one definition is doubling speed every 2 years, and increasing by 15.23 in 8 years is actually very close to Moore's Law: 33.6 x 2 x 2 x 2 x 2 = 537.6kbps For me to keep up with Moore's Law I'd have to get a 2Mbps broadband connection by 2007, which I'd say is almost a certainty. -- Steve - http://www.digitalradiotech.co.uk/ - Digital Radio News & Info |
wowfabgroovy wrote:
"DAB sounds worse than FM" went: http://media.guardian.co.uk/city/sto...167284,00.html Broadband bandwidth is going up at a similar rate to Moore's Law (Moore's Law states that CPU speeds double every couple of years), so if that continues over the next decade (and from what I've read it is likely to) then TV-on-demand via broadband becomes a feasible alternative to digital TV. I for one hope it succeeds so that Sky have some competition in the premium-content arena. it seems to want me to register. what does it say? usually when people go on about things like this they really mean stamp sized realplayer videos, not broadcast quality mpegs you could actually watch on a telly. freeview is about 1.5 to 2 gig per hour. Here you go: BT to offer TV and movie hits online Owen Gibson Thursday March 11, 2004 Telecoms giant BT today unveiled ambitious plans to boost subscriptions to high-speed broadband services, including taking on pay-TV companies with 'video on demand' television shows, including hit ITV series The Bill. Under the proposals, broadcasters and movie studios will be able to deliver a huge library of television shows and films to broadband users at a quality equivalent to digital TV or DVD. Although BT again insisted it would never become a content provider to rival the BBC or BSkyB, it claimed its new BT Rich Media suite of products would make it much easier for broadcasters to offer pay-per-view services to its subscribers. It has already sealed a deal with Fremantle to show episodes of The Bill on a pay-per-view basis and said it had 31 other major deals in the pipeline with UK and US broadcasters in the pipeline. For a monthly fee, BT will handle the distribution of the content and, through its Click & Buy service, charge customers subscription fees or one-off payments to their credit card or BT bill. It said it could also boost the speed of the network when showing paid-for broadcast content so the picture is equivalent to DVD quality. The chief executive of BT Retail, Pierre Danon, said the monthly charge could be as little as £100 in an effort to persuade community channels, regional services, special interest groups and even local football teams to broadcast over the internet. He insisted broadband lines would eventually deliver video on demand directly to subscribers' television sets. "It is technologically already possible, so I don't see why we wouldn't do it," said Mr Danon. Andrew Burke, the director of online services at BT Retail, said the move would make broadband complementary rather than competitive with pay-TV services from cable and Sky. "If you want video on demand you'll be broadband and if you want broadcast TV you'll go to pay-TV," he said. The move ties in with another BT initiative unveiled today, allowing its broadband subscribers to upgrade the speed of their service at any time and, if they subscribe to the basic £19.99 a month product, purchase extra chunks of access. Rather than charging a high fixed monthly fee, BT anticipates slowly migrating its customers to a pay-as-you-go model, where they will pay a low fixed fee plus extra occasional charges to boost the speed of the service to watch films or download software. The flexible bandwidth service is due to begin trials next month and is expected to launch before the end of the year. The move is also a response to increased competition from other internet service providers. Unlike other European markets, where the incumbent telco dominates, BT has around four in 10 connections in the UK, with the rest split between 350 other ISPs. This is fuelling downward pressure on prices and an explosion in services. Tiscali announced yesterday it planned to undercut BT's premium 1Mb service by £8 and offer high-speed broadband access for £29.99 a month. It also launched a new service to match BT's £19.99 offer. BT, which has 2 million broadband subscribers over its lines, has promised shareholders that it will have 5 million by 2006 and said today's announcements were designed to appeal to those who saw no reason to upgrade. Including cable subscribers, there are now more than 3.5 million broadband connections in the UK. "This is the second stage of the broadband revolution in the UK and we aim to drive it forward. Today's announcement underlines our determination to continue innovating to ensure broadband develops a 'must-have' appeal for millions more households throughout the UK," said Mr Danon. In partnership with US internet giant Yahoo!, with whom it last year launched the BT Yahoo Broadband ISP, it is also launching a new service called BT Communicator that will integrate instant messaging, email, text messaging and the ability to make phone calls over the internet to any fixed line or mobile phone through a PC. If the call is made to another PC with BT Communicator then it will be free, but calls to fixed line phones and mobiles will be charged at the standard national rate. The service will also allow users to make video calls. Gavin Patterson, the former managing director of Telewest's consumer division who joined BT earlier this year as managing director of BT's consumer and ventures division, said the new innovations would allow consumers to have more choice and flexibility in mixing the broadband services they wanted. "In a marketplace with more than 80 million customers you need more than one front to fight on and compete in. There are several dimensions you can combine and in doing so you can provide more focused and targeted solutions to customers," he said. -- Steve - http://www.digitalradiotech.co.uk/ - Digital Radio News & Info DAB sounds worse than Freeview, digital satellite, cable, broadband internet and FM |
R. Mark Clayton wrote:
"DAB sounds worse than FM" wrote in message snip Maybe not as quickly as Moore's Law, but historically it's gone up pretty quickly. The modem connection speeds I've used are as follows: 1995 - 33.6kbps 199? - 56kbps 2003 - 512kbps Over POTS 1978 - 300bps 1982 - 1200bps 1985 - 9600bps v32 1992 - 14k4bps v32b 1995 - 28k8bps v34 1996 - 33k4bps for analog injection this is the limit according to Shannon's law. 1997 - 56kbps (NOT end to end) ISDN 1990 - 128kbps ADSL current - up to about 2Mb over local loop, but as you go faster the range falls. 2 Mbps / 300 bps = 6667 2^((2004-1978)/2)) = 8192 Not bad at all! Moore's Law says the number of gates on a chip (CPU or memory) doubles about every 18 months. This has held pretty well from the first Intel chips (4004 & 1103 in ~1970) to date. Various predictions that the laws of physics will run out for chips have been made for ~30 years, but so far the fabs have outsmarted the cynics. I read the Intel CTO (I think) saying they'd be able to stick with Moore's Law for about the next 15 years or so. Predictions of the limit of how much information you can get down 2 - 10km of thin single core twisted pair wire are more scientifically based, and IMHO unlikely to be outsmarted. What speed do you think will be the typical speed consumers will have in, say, 10 years' time? The realistic way to go much faster (Gb's) is fibre to the kerb. I think we're a long time from getting that. -- Steve - http://www.digitalradiotech.co.uk/ - Digital Radio News & Info DAB sounds worse than Freeview, digital satellite, cable, broadband internet and FM |
My background in comms goes back to 87, so you can do further maths on these
commonly used data rates if you like: 1987 - 1200bps 1990 - 2400bps 1992 - 9600bps 1993 - 14400bps 1994 - 28800bps .. 2003 - 2048kbps on regularly available urban broadband 2004 - 4096kbps on city metro broadband Expect to see 8Meg this year possibly and potentially much greater. Korea SP's now offer a 100meg service in the metro FYI So its real, just needs some pricing incentives and of course broadband TV and whatever else to create the demand. I cant wait for a bi directional TV service rgds "DAB sounds worse than FM" wrote in message ... Andrew wrote: On Thu, 11 Mar 2004 16:15:00 -0000, "DAB sounds worse than FM" wrote: Broadband bandwidth is going up at a similar rate to Moore's Law How do you work that one out? The fastest consumer service you could get two years ago was 2Mbit, and today its still the same, and still too expensive. Maybe not as quickly as Moore's Law, but historically it's gone up pretty quickly. The modem connection speeds I've used are as follows: 1995 - 33.6kbps 199? - 56kbps 2003 - 512kbps so in 8 years it's gone up by a factor of 512/33.6 = 15.23. I've seen different definitions of Moore's Law, but one definition is doubling speed every 2 years, and increasing by 15.23 in 8 years is actually very close to Moore's Law: 33.6 x 2 x 2 x 2 x 2 = 537.6kbps For me to keep up with Moore's Law I'd have to get a 2Mbps broadband connection by 2007, which I'd say is almost a certainty. -- Steve - http://www.digitalradiotech.co.uk/ - Digital Radio News & Info DAB sounds worse than Freeview, digital satellite, cable, broadband internet and FM |
I was under the impression that 8 mbit SDSL was already available via some
unbundled local-loop in London. I know that at least one company is offering 4 mbit ?DSL for £79.99 aimed at 'home users'. That should be more than enough for a single high-quality video stream. David "Robin Smith" wrote in message news:[email protected] My background in comms goes back to 87, so you can do further maths on these commonly used data rates if you like: 1987 - 1200bps 1990 - 2400bps 1992 - 9600bps 1993 - 14400bps 1994 - 28800bps . 2003 - 2048kbps on regularly available urban broadband 2004 - 4096kbps on city metro broadband Expect to see 8Meg this year possibly and potentially much greater. Korea SP's now offer a 100meg service in the metro FYI So its real, just needs some pricing incentives and of course broadband TV and whatever else to create the demand. I cant wait for a bi directional TV service rgds "DAB sounds worse than FM" wrote in message ... Andrew wrote: On Thu, 11 Mar 2004 16:15:00 -0000, "DAB sounds worse than FM" wrote: Broadband bandwidth is going up at a similar rate to Moore's Law How do you work that one out? The fastest consumer service you could get two years ago was 2Mbit, and today its still the same, and still too expensive. Maybe not as quickly as Moore's Law, but historically it's gone up pretty quickly. The modem connection speeds I've used are as follows: 1995 - 33.6kbps 199? - 56kbps 2003 - 512kbps so in 8 years it's gone up by a factor of 512/33.6 = 15.23. I've seen different definitions of Moore's Law, but one definition is doubling speed every 2 years, and increasing by 15.23 in 8 years is actually very close to Moore's Law: 33.6 x 2 x 2 x 2 x 2 = 537.6kbps For me to keep up with Moore's Law I'd have to get a 2Mbps broadband connection by 2007, which I'd say is almost a certainty. -- Steve - http://www.digitalradiotech.co.uk/ - Digital Radio News & Info DAB sounds worse than Freeview, digital satellite, cable, broadband internet and FM |
On Thu, 11 Mar 2004 18:42:52 -0000, "DAB sounds worse than FM"
wrote: Anyway, if you want to prove me wrong then provide some figures. It's far too easy just to criticise people without providing any figures to back up your claims. Erm, I wasn't trying to prove you wrong or criticise, just saying that you can't really compare it to Moores Law as you are comparing your own figures. I am not making any claims. Get over it. -- Moldy "Then you have the low-carb dieters. This involves the active avoidance of life-giving antioxidants while scarfing massive amounts of known carcinogens until someone punches you to death for bragging about how much weight you lost." - Scott Adams |
Robin Smith wrote:
My background in comms goes back to 87, so you can do further maths on these commonly used data rates if you like: 1987 - 1200bps 1990 - 2400bps 1992 - 9600bps 1993 - 14400bps 1994 - 28800bps . 2003 - 2048kbps on regularly available urban broadband 2004 - 4096kbps on city metro broadband Increase by a factor of 3413, and clearly exponential growth. I think I've proved my point to the non-mathematical sceptics. :) Expect to see 8Meg this year possibly and potentially much greater. Korea SP's now offer a 100meg service in the metro FYI So its real, just needs some pricing incentives and of course broadband TV and whatever else to create the demand. I cant wait for a bi directional TV service As well as broadband TV, I'm looking forward to something more humble: CD audio quality radio via broadband, because when multicasting is enabled on the IP routers (when IPv6 is rolled out I've been told) then there'll be no excuse to use crappy Real Player and other such codecs at stupidly low bit rates. Also, I think it'd be cruelly ironic if broadband TV became successful by being the first to deliver HDTV. -- Steve - http://www.digitalradiotech.co.uk/ - Digital Radio News & Info DAB sounds worse than Freeview, digital satellite, cable, broadband internet and FM |
DAB sounds worse than FM wrote:
Ignition wrote: Speaking from my own usage I've moved home twice in this time - here's my stats: I had 56k in 98, 64/128k in 99, 600k in 2000 (cable), 1Mbit in 2002(cable), 512k in 2003, 1Mbit in 2004 (gaydsl). At no time did I pay more than £50 a month, which I consider to be absolute maximum. 1 Mbps / 56 kbps = 17.86 2004 - 1998 = 6 years Moore's Law predicts a doubling of speed every 2 years, so in 6 years you get: 56kbps x 2 x 2 x 2 = 448 kbps So you're more than twice ahead of Moore's Law. I don't really see what you're complaining about given that some areas can't even get 512kbps, let alone 1Mbps. I fail to see the relevance of Moore's Law to this. CPU enhancement comes from improvements in technology. With ADSL the same technology that gave 512kbit 6 years ago will give 8 now. Considering that the original trials from c1997-98 were done at 2Mbit IIRC the form of ADSL used in the UK goes up to 8 Mbps, but due to the broadband business models they limit your bandwidth. I don't really consider this any sort of progress, 18 times faster in 6 years is not any sort of progress?? I suggest you look in the dictionary for the word 'progress'. OK and since 2000 when I left the narrowband technologies? Even had to take a step back due to no cable... No doubt it will happen eventually, and indeed already is in a very few places through Homechoice and 2.3Mbit Videostream HDSL, however to compare increase in connection rates with increase in CPU speeds is a fallacy. Up to now it seems to be standing up to scrutiny, and I'll tell you why: Fibre optic cables that are used for the internet backbone can handle virtually unlimited bandwidth, but to harness the bandwidth that fibre optics allow you need to increase the speed of the processors that process the signals being carried on the fibre optic cables, so doubling the speeds of processors will allow the data bandwidths to increase roughly proportionally with CPU speed. And just to point out that the original form of Moore's Law was that the number of transistors you can fit into a given area of silicon doubles every 2 years (IIRC) (and because the electrons have a shorter distance to travel they can switch faster), so PC CPUs are not the only CPUs, and the dedicated network processors will also have smaller transistors that switch faster, just like your 2.x GHz Athlon XP in your PC can. The internet's backbones in the UK sit mostly idle due to the extreme bottleneck close to the customers. Speaking from my own *experience* having worked for ISPs in the past. The original form of Moore's Law doesn't apply in any way to this. Juniper's higher end kit switches and routes better because it has multiple switching modules working in parallel. As I said anyway well run backbones aren't even stressed, due to extreme bottlenecks over the 'last mile'. My increase in 2 years has been nil, in 4 less than double. An increase by a factor of 18 in 6 years, that's excellent. What do you need this bandwidth for anyway? The same reasons you don't have a 486 in you PC probably. Do people ask you why you aren't using a 500MHz CPU, does most things a 2GHz does, just *slower* What is it to do with you why I want better services for myself anyway? Should I be happy paying the same as places traditionally more expensive to live in, for less? Personification of 'rip-off Britain' bend over and take it, and stop complaining. At the end of the day the only DSL progress has been Datastream, and 1Mbit IPStream, even that took nearly 4 years to be released. BT Wholesale have no intention of breaking the 2Mbit barrier, while ntl: are testing 3Mbit burst speeds in Guildford BT's new burst product will not break this psychological 2Mbit barrier. Anyway I have spoken extensively about this on adslguide's forums, Why doesn't that surprise me? You tell me, again getting moaned out for wanting a lazy telco to do more. Want me to pass the vaseline there? proposing a PAYG as fast as your phone line will tolerate package, however people seem more concerned about remote areas getting DSL than any sort of progress towards real broadband so.... You have to put yourself in the shoes of those without broadband at all, and then you might just have the humility to realise that you're not doing at all badly IMO. I'd rather not, I live in a not small city, and have access to the same services as a village with a population of 500 enabled by the local Government throwing BT a few quid. Madness. If you're happy with the current situation I'd suggest you look elsewhere and see we are at the bottom of the pile of the G8 as far as connection speeds available go, but at the top for availability. Although of course by the time the nationwide rollout is done 512k will be a laughable connection speed, but hey at least we'll all be shafted together, and BT make more profit either way. You have no idea about why the UK's DSL is so relatively slow, it's for mostly preserving legacy revenues for BT, and political expediency. In no other field at the moment I think are the 'early adopters' so poorly catered for. Igni |
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