640 Kbps ADSL upload trial completed

Glordit said:
aaaaaaah!! me forgets that Mybroaband loves to use kbps and not KBs :)
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the standard when referring to internet speeds (globally) is to use kbps. it's not just a mybroadband thing. Or do you think that there are consumer ADSL lines that download at 24 Megabytes per second?
 
Abe said:
No, the theoretical maximum download speed on a 4meg line is a bit below 512Kb/s. Upload speed would be 640kb/s or 80Kb/s.
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Some people just get it wrong. On the 4Mbit download and 640kb upload, the following will happen:
4Mb down--> 4096kilobits --> 512KiloBytes --> approx 450kiloBytes per second (due to overhead)
640kb up--> 640kilobits-->80KiloBytes--> approx 68Kilobytes per second upload (again not 80 because of overhead)

And kb/mb is kilobit/megabit (used in internet/lan speeds),
as kB/KB//MB/mB is kilobyte/megabyte (used for storage devices)
Conversion: 1 MB/KB==8kb/mb
Overhead: ~~15-17% ie on a 384kbps line (48KBps) you get 40-41KBps and on a 4Mbps line you get approx 430-440KBps.
If you get higher bursts, that's because everybody gets those.
 
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I would love an higher upload speed! It would make my work so much easier and then double the download speed would to :)
 
I can only hope that an increase in download speeds will follow suit...
 
This is weird, our line has had 512kbps upload for at least two weeks now. Could we be part of the trial and not even be aware of it? Anyone else have 512kbps upload on their 4mbps line?

That would explain the instability ....
 
froot said:
Some people just get it wrong. On the 4Mbit download and 640kb upload, the following will happen:
4Mb down--> 4096kilobits --> 512KiloBytes --> approx 450kiloBytes per second (due to overhead)
640kb up--> 640kilobits-->80KiloBytes--> approx 68Kilobytes per second upload (again not 80 because of overhead)
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I don't see what he got wrong? He was using the common way of typing a 4"meg" line, by which he means 4 megabits. Then he gave the theoretical max speeds which were right, and most people don't bother capitalising the B. I'm sure everyone knew what he meant..
 
Ekhaatvensters said:
I don't see what he got wrong? He was using the common way of typing a 4"meg" line, by which he means 4 megabits. Then he gave the theoretical max speeds which were right, and most people don't bother capitalising the B. I'm sure everyone knew what he meant..
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i can honestly say i didn't. as you can see from one of my posts above. in fact i thought he might be asking about the fact that a single thread on international downloads seems to be limited to around 512kbps.
 
just because the trial is completed says nothing to its availability on a commercial basis
 
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