What is the fastest possible dial-up connection speed?

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TheBoyBlunder

Diamond Member
Apr 25, 2003
5,742
1
0
Originally posted by: Gaard
Originally posted by: jpeyton
Net Zero High Speed roxors!

What makes it high-speed?

A cache program...nothing more, really. As far as I can tell, all it does is download whatever's changed in a website from the last time you visited it. It's not really "high speed", it just feels like it.
 

Shawn

Lifer
Apr 20, 2003
32,236
53
91
Originally posted by: Gaard
Originally posted by: jpeyton
Net Zero High Speed roxors!

What makes it high-speed?

high amounts of compression. it compress all images as well as text. you can adjust the level of compression to make images look better or make it faster if you don't care how they look.
 

Shawn

Lifer
Apr 20, 2003
32,236
53
91
Originally posted by: TheBoyBlunder
Originally posted by: Gaard
Originally posted by: jpeyton
Net Zero High Speed roxors!

What makes it high-speed?

A cache program...nothing more, really. As far as I can tell, all it does is download whatever's changed in a website from the last time you visited it. It's not really "high speed", it just feels like it.

not true. read my above post.
 

Imdmn04

Platinum Member
Jan 28, 2002
2,566
6
81
Technically, ISDN is dial-up too, because you would first have to dial up to the isp number in order to connect. But the dial-up process is way faster than 56k.
 

beer

Lifer
Jun 27, 2000
11,169
1
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Originally posted by: iloveme2
Originally posted by: Elemental007
FCC limits line speeds because of the voltages that would be required to exceed 53 kbs. The pots infrastructure was built for voice, not data, and the telephony equipment that has been in place for decades can't handle voltage levels that would be required to move beyond 53 kps
That is, if I recall correctly.

So then why did they make modems 56k?

Read every single 56k product released. They all say that they are limited to 53k because of FCC regulations.

 

Shawn

Lifer
Apr 20, 2003
32,236
53
91
Originally posted by: Elemental007
Originally posted by: iloveme2
Originally posted by: Elemental007
FCC limits line speeds because of the voltages that would be required to exceed 53 kbs. The pots infrastructure was built for voice, not data, and the telephony equipment that has been in place for decades can't handle voltage levels that would be required to move beyond 53 kps
That is, if I recall correctly.

So then why did they make modems 56k?

Read every single 56k product released. They all say that they are limited to 53k because of FCC regulations.

Ok so why are they not called 53k modems them?
 

IamElectro

Golden Member
Jul 15, 2003
1,470
0
76
Originally posted by: Elemental007
FCC limits line speeds because of the voltages that would be required to exceed 53 kbs. The pots infrastructure was built for voice, not data, and the telephony equipment that has been in place for decades can't handle voltage levels that would be required to move beyond 53 kps

That is, if I recall correctly.


Another part of this is crosstalk. The increased line voltage required for anything above 53k would cause interference with other lines in the bundle. Kind of similar to when your on your phone (non cordless) and hear another conversation.
 

beer

Lifer
Jun 27, 2000
11,169
1
0
Originally posted by: iloveme2
Originally posted by: Elemental007
Originally posted by: iloveme2
Originally posted by: Elemental007
FCC limits line speeds because of the voltages that would be required to exceed 53 kbs. The pots infrastructure was built for voice, not data, and the telephony equipment that has been in place for decades can't handle voltage levels that would be required to move beyond 53 kps
That is, if I recall correctly.

So then why did they make modems 56k?

Read every single 56k product released. They all say that they are limited to 53k because of FCC regulations.

Ok so why are they not called 53k modems them?

How about you learn to use Google
 

beer

Lifer
Jun 27, 2000
11,169
1
0
Originally posted by: IamElectro
Originally posted by: Elemental007
FCC limits line speeds because of the voltages that would be required to exceed 53 kbs. The pots infrastructure was built for voice, not data, and the telephony equipment that has been in place for decades can't handle voltage levels that would be required to move beyond 53 kps

That is, if I recall correctly.


Another part of this is crosstalk. The increased line voltage required for anything above 53k would cause interference with other lines in the bundle. Kind of similar to when your on your phone (non cordless) and hear another conversation.

Exactly. Increasing the voltage would increase the amplitude of the electric field. This would lead to interference, commonly referred to as crosstalk. Again, this is part of the limitations of the pots infrastructure. As pots was designed for voice, it assumed a certain upper bounds on the E field, as a result, interference happens as it increased beyond.

Once again, I don't claim this to be 100% right, just from what i've inferred from combining several sources of knowledge together.
 

beer

Lifer
Jun 27, 2000
11,169
1
0
Originally posted by: Imdmn04
Technically, ISDN is dial-up too, because you would first have to dial up to the isp number in order to connect. But the dial-up process is way faster than 56k.

ISDN uses digital phone lines and is not subject to the electric field restrictions that limit the analog lines. It is dialup but it really doesn't have anything else in common.
 

Shawn

Lifer
Apr 20, 2003
32,236
53
91
Originally posted by: Elemental007
Originally posted by: iloveme2
Originally posted by: Elemental007
Originally posted by: iloveme2
Originally posted by: Elemental007
FCC limits line speeds because of the voltages that would be required to exceed 53 kbs. The pots infrastructure was built for voice, not data, and the telephony equipment that has been in place for decades can't handle voltage levels that would be required to move beyond 53 kps
That is, if I recall correctly.

So then why did they make modems 56k?

Read every single 56k product released. They all say that they are limited to 53k because of FCC regulations.

Ok so why are they not called 53k modems them?

How about you learn to use Google

wow that whole thing still does not tell me why they are called 56k modems instead of 53k modems.
rolleye.gif
 

beer

Lifer
Jun 27, 2000
11,169
1
0
Originally posted by: iloveme2


wow that whole thing still does not tell me why they are called 56k modems instead of 53k modems.
rolleye.gif

the modem circuitry is capable of 56k.
The pots electric field and voltage limits keep it to 53k.

the modem is capable of more, but the infrastructure isn't. Such is my guess.
 

jsbush

Diamond Member
Nov 13, 2000
3,871
0
76
Originally posted by: rh71
It's not what it says... it's what you can download at. Shouldn't show more than 5KBps max.

Your download speed and connection speed are irrelevent because of file compression.
 

PowerMacG5

Diamond Member
Apr 14, 2002
7,701
0
0
Originally posted by: AgaBooga
Originally posted by: geno
Originally posted by: rh71
It's not what it says... it's what you can download at. Shouldn't show more than 5KBps max.

Somewhere between 6KB and 7KB is closer to 53k

53k/8 = ~6.5KB

True, but in most cases the line will have some interference.
Also don't forget the TCP overhead.