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#1
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Modem connection speed
On our standard 56k dialup modem (in the UK, this is), we only get ~38k when
we connect. Are there any ways to correct this? I've considered calling the phone company and asking them to turn up the gain, but I've also been told that this wouldn't make any difference. Drivers etc are all up to date and this is happening on 2 computers in our house, so does anyone have any ideas? Cheers for your help. Barney / |
#2
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Line quality might be the limiting factor. See if you can get the line
provider and the isp provider to check it for you. Art Leonard Neil Barnwell wrote: On our standard 56k dialup modem (in the UK, this is), we only get ~38k when we connect. Are there any ways to correct this? I've considered calling the phone company and asking them to turn up the gain, but I've also been told that this wouldn't make any difference. Drivers etc are all up to date and this is happening on 2 computers in our house, so does anyone have any ideas? Cheers for your help. Barney / |
#3
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56k = 56k max if you're lucky. I've never been about 44k when forced to use
dial up (usually when fixing virus infected laptops in work). "Art Leonard" wrote in message nk.net... Line quality might be the limiting factor. See if you can get the line provider and the isp provider to check it for you. Art Leonard Neil Barnwell wrote: On our standard 56k dialup modem (in the UK, this is), we only get ~38k when we connect. Are there any ways to correct this? I've considered calling the phone company and asking them to turn up the gain, but I've also been told that this wouldn't make any difference. Drivers etc are all up to date and this is happening on 2 computers in our house, so does anyone have any ideas? Cheers for your help. Barney / |
#4
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Your computer's distance from the local telephone switch determines what the
speed of your connection is. If you live next door to the switch office you'll get the 55k. If you live 10 miles away, you may only get 24k. The level of line noise that the telephone company allows on its lines also affects the transmission speed. -- DaveW "Neil Barnwell" wrote in message ... On our standard 56k dialup modem (in the UK, this is), we only get ~38k when we connect. Are there any ways to correct this? I've considered calling the phone company and asking them to turn up the gain, but I've also been told that this wouldn't make any difference. Drivers etc are all up to date and this is happening on 2 computers in our house, so does anyone have any ideas? Cheers for your help. Barney / |
#5
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#6
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"Neil Barnwell" wrote in message ... On our standard 56k dialup modem (in the UK, this is), we only get ~38k when we connect. Are there any ways to correct this? I've considered calling the phone company and asking them to turn up the gain, but I've also been told that this wouldn't make any difference. Drivers etc are all up to date and this is happening on 2 computers in our house, so does anyone have any ideas? Cheers for your help. You need to pretty careful when talking about modem speeds, if you use a stop bit then there are 9 bits to the byte, so to speak. So...56/9 ~= 6 (6X9=54) so 6X8=48 which is the max I get on tests and mine uses one stop bit. Barney / |
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#8
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"ChrisJ9876" wrote in message ... From: "half_pint" Date: 07/02/2004 2:38 PM Eastern Daylight Time Message-id: "Neil Barnwell" wrote in message ... On our standard 56k dialup modem (in the UK, this is), we only get ~38k when we connect. Are there any ways to correct this? I've considered calling the phone company and asking them to turn up the gain, but I've also been told that this wouldn't make any difference. Drivers etc are all up to date and this is happening on 2 computers in our house, so does anyone have any ideas? Cheers for your help. You need to pretty careful when talking about modem speeds, if you use a stop bit then there are 9 bits to the byte, so to speak. So...56/9 ~= 6 (6X9=54) so 6X8=48 which is the max I get on tests and mine uses one stop bit. Ummm...56k is 56k BITS/sec, not bytes, so your math is somewhat irrelevant. Well maybe, it depends on how the data rate is calculated if for instance you go to http://start.maui.net/home/techsuppo...dth/image1.htm You will find your speed is determined simply by dividing the size of the image in bytes by the time taken (X8), however as I use a stop bit it should be X9. Also there will be a start bit two so it is X10 so......if I get the max data rate 56kbs and they use their image size over time method all is not as it seems, because 10 bit are transmitted for every 8 counted. So the speed is 20% higher in reality. Then of course there is the overhead of internet protocols to take into account. Also if you look at dial up networking bytes sent this is not going to include start and stop bits. I would imagine most phone lines are easilly capable of 56kps, I mean when you upgrade to broadband they dont change the line of they? They dont lay down a whole new wire back to the exchange, its the same line isn't it? And those lines will be doing 10 times 56 kps (or 40X's in some cases). |
#9
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It's BITS PER SECOND. if a byte was 5000bits it would still connect at a
max of 56kb/s ;-) "half_pint" wrote in message ... "ChrisJ9876" wrote in message ... From: "half_pint" Date: 07/02/2004 2:38 PM Eastern Daylight Time Message-id: "Neil Barnwell" wrote in message ... On our standard 56k dialup modem (in the UK, this is), we only get ~38k when we connect. Are there any ways to correct this? I've considered calling the phone company and asking them to turn up the gain, but I've also been told that this wouldn't make any difference. Drivers etc are all up to date and this is happening on 2 computers in our house, so does anyone have any ideas? Cheers for your help. You need to pretty careful when talking about modem speeds, if you use a stop bit then there are 9 bits to the byte, so to speak. So...56/9 ~= 6 (6X9=54) so 6X8=48 which is the max I get on tests and mine uses one stop bit. Ummm...56k is 56k BITS/sec, not bytes, so your math is somewhat irrelevant. Well maybe, it depends on how the data rate is calculated if for instance you go to http://start.maui.net/home/techsuppo...dth/image1.htm You will find your speed is determined simply by dividing the size of the image in bytes by the time taken (X8), however as I use a stop bit it should be X9. Also there will be a start bit two so it is X10 so......if I get the max data rate 56kbs and they use their image size over time method all is not as it seems, because 10 bit are transmitted for every 8 counted. So the speed is 20% higher in reality. Then of course there is the overhead of internet protocols to take into account. Also if you look at dial up networking bytes sent this is not going to include start and stop bits. I would imagine most phone lines are easilly capable of 56kps, I mean when you upgrade to broadband they dont change the line of they? They dont lay down a whole new wire back to the exchange, its the same line isn't it? And those lines will be doing 10 times 56 kps (or 40X's in some cases). |
#10
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"Alex B" wrote in message ... 56k = 56k max if you're lucky. I've never been about 44k when forced to use dial up (usually when fixing virus infected laptops in work). Well if you divide your 44 by 8 to get bits its 5.5 then times 10 to get bits including start and stop bits which is quite close the mythical 56k, incidently the max rate I get on downloads is also 4.4 KBytes/second. You will never transmit 56k of data bits in a second because extra bits are added, the start and stop bits. Sounds like you connection was working at a full 56k. I could be wrong of course, but that doesnt happen very often. -- half_pint "Art Leonard" wrote in message nk.net... Line quality might be the limiting factor. See if you can get the line provider and the isp provider to check it for you. Art Leonard Neil Barnwell wrote: On our standard 56k dialup modem (in the UK, this is), we only get ~38k when we connect. Are there any ways to correct this? I've considered calling the phone company and asking them to turn up the gain, but I've also been told that this wouldn't make any difference. Drivers etc are all up to date and this is happening on 2 computers in our house, so does anyone have any ideas? Cheers for your help. Barney / |
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