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Modem connection speed



 
 
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  #1  
Old July 1st 04, 10:49 PM
Neil Barnwell
external usenet poster
 
Posts: n/a
Default 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  
Old July 1st 04, 11:48 PM
Art Leonard
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Posts: n/a
Default

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  
Old July 2nd 04, 12:04 AM
Alex B
external usenet poster
 
Posts: n/a
Default

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  
Old July 2nd 04, 12:05 AM
DaveW
external usenet poster
 
Posts: n/a
Default

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 /





  #6  
Old July 2nd 04, 07:38 PM
half_pint
external usenet poster
 
Posts: n/a
Default


"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 /





  #8  
Old July 2nd 04, 10:33 PM
half_pint
external usenet poster
 
Posts: n/a
Default


"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  
Old July 2nd 04, 11:22 PM
Alex B
external usenet poster
 
Posts: n/a
Default

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  
Old July 3rd 04, 12:34 AM
half_pint
external usenet poster
 
Posts: n/a
Default


"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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