When you say 600kb/s do you mean 600 Kilo Bytes per second?

Convention is Kilo Bytes is shorted to KB

Using lower case kb will read as kilo bits (which makes your quoted speeds seem eight times slower).

Oh, I see! You don't know your bits from your Bytes . Join the crowd!

Post deleted by XRaySpeX

You possibly never got round to reading "Old BT Profile" on my website. That explains why your actual speed can take time to adjust once the sync speed has risen .

There is another thing we haven't discussed yet, which may be slowing you down a bit. That is the noise margin at sync time - the time you connect. If you read the stats immediately after a reconnect of the router to the net, I think it will be around 9dB.

If it is, there is a fair chance that will drop to 6dB 10-14 days after we stop messing around. That will give you at least another 500kbps sync speed.

Note - a connection made well inside daylight hours will almost always be quite a bit higher than one made during dawn, dusk or the night.

Edited by RobertoS (Mon 23-Jul-12 20:50:44)

I'm going off what Internet explorer etc reports when downloading

On a connection advertised as 2 meg (that's how it's pronounced)

I used to get 180 KB/s displayed by Internet explorer

So are the browsers reporting it wrong?

On my 80 meg

Chrome reports 7600 KB/s generally on downloads

Is that wrong?

Hence my theory that an 8 meg sync which a router displays as 8128 Kbps

You get around 700 KB/s in browsers when downloading (as reported by the browser)

Edited by ukhardy07 (Mon 23-Jul-12 20:55:55)

The browsers report in Kilo Bytes per second, so 180KB/s is 180*8=1440 kilo bits per second, i.e. 1.4 Meg

Connections are sold on their data rate in bits, Windows reports in Kilo Bytes as that is the usual unit used by the operating system to measure file sizes.

In reply to a post by XRaySpeX:

In reply to a post by ukhardy07:

8 Mbps is not 8 mb/s it's around 0.8 mb /s

Eh? How do you make that out?

Removing all the abbreviations you are saying "8 Megabits per second is not 8 Megabits per second; it's around 0.8 Megabits per second" (and that's allowing for your lower case "m" meaning Mega and not milli). Utter twaddle!

Oh I see!

Yes i'm confusing megabits bytes bits etc
The whole shindig

Edited by ukhardy07 (Mon 23-Jul-12 21:01:45)

When I upload a file and the receiving site indicates that the file is being transferred at ~105KB/s then multiplying that by 8 = ~840Kbps is near enough for me - relating KB/s and Mbps when downloading or transferring files locally can be a bit (excuse the pun) tricky though

However it's critical when setting video bit rates: some compression software will use KB/s, others Kbps or Mbps and even bps...isn't KB/s normally used for transfer rates and Kbps/Mbps for data rates?

In reply to a post by RobertoS:

You possibly never got round to reading "Old BT Profile" on my website. That explains why your actual speed can take time to adjust once the sync speed has risen .

There is another thing we haven't discussed yet, which may be slowing you down a bit. That is the noise margin at sync time - the time you connect. If you read the stats immediately after a reconnect of the router to the net, I think it will be around 9dB.

If it is, there is a fair chance that will drop to 6dB 10-14 days after we stop messing around. That will give you at least another 500kbps sync speed.


Note - a connection made well inside daylight hours will almost always be quite a bit higher than one made during dawn, dusk or the night.

Thanks . I missed that completely; i found your other two articles very helpful with removing noise!
So i need to wait a couple of days to possibly see further change.

And the KB kb MB mb discussion hurts my head as a university student intent on avoiding maths for the rest of his life aha.

Edited by deleted (Mon 23-Jul-12 21:21:31)

Just taking one of examples to enlighten you:

In reply to a post by ukhardy07:

On a connection advertised as 2 meg (that's how it's pronounced)

I used to get 180 KB/s displayed by Internet explorer

So are the browsers reporting it wrong?

No, but you are by using lower case "b" (as in your previous posts) instead of upper case "B" (as reported by IE and all its friends) to stand for "Bytes"!

You must be careful to use the right abbreviations in order to communicate with others:
"b" = "bits"
"B" = "Bytes"
And to a lesser extent "M" = "Mega", not "m" which means "milli" (1/1000).

So your example is saying:
On a Connection Speed of 2 Mb/s you are getting a throughput of 180 KB/s = 1.44 Mb/s, i.e. 72% of Sync Speed cuz there overheads on top of the actual data carried. On a pure speedtest (i.e. not IE ) you can expect about 83.5% of Sync = 1670 Kb/s = 209 KB/s.