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26 posts


# 42229 1-Oct-2009 02:15
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I live roughly around 450-500metres away from my exchange, Massey exchange, and i only get a 10mbps connection with telecom Go plan, this plan should have ADSL2+, which telecom says is 24mbps.

Im just wondering why im not getting my full speed?

from my modem

DSL Type:
G.992.5 annex A

Bandwidth (Up/Down) [kbps/kbps]:
798 / 10.661

Data Transferred (Sent/Received) [kB/kB]:
0,00 / 0,00

Output Power (Up/Down) [dBm]:
12,5 / 16,5

Line Attenuation (Up/Down) [dB]:
0,5 / 2,5

SN Margin (Up/Down) [dB]:
15,5 / 12,5

Vendor ID (Local/Remote):

Loss of Framing (Local/Remote):
17 / 0

Loss of Signal (Local/Remote):
3 / 0

Loss of Power (Local/Remote):
0 / 0

Loss of Link (Remote):

Error Seconds (Local/Remote):
20 / 0

FEC Errors (Up/Down):
0 / 138.956

CRC Errors (Up/Down):
0 / 1

HEC Errors (Up/Down):
3.341 / 1

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  # 259995 1-Oct-2009 10:37
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That's about right, 24mbps is the theoretical max

meaning if you are straight next door and have no errors in wiring/no filters/no phones, one straight copper pair, then you'd almost get that much.

But due to:
line errors, your distance from the exchange, CRC errors, probably line filters on your phone line + at least one phone? then 10-12mbps seems reasonable to me :)

I'm 500m from my exchange and i get about 12968, 900 up

I have moved across the ditch.  Now residing in Melbourne as a VOIP/Video Technical Trainer/Engineer. 

I fix stuff!
1788 posts

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  # 260002 1-Oct-2009 10:45
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Line Attenuation (Up/Down) [dB]:
0,5 / 2,5

With those kind of figures you should be getting 20mbit+.

I would do a line isolation test (unplug everything) and see if that makes a difference.

I do see you are getting FEC and HEC errors, nothing huge but something to keep an eye on.


I fix stuff!
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  # 260004 1-Oct-2009 10:47
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Also if you are only 500m away from the exchange I would be getting excited about VDSL!

We been doing some trials on our dslam kit and have a customer who has 30mbit/30mbit and he is around 500m out of the exchange.

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  # 260010 1-Oct-2009 10:57
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yer iv been wondering about when vdsl is coming out. the speeds look awesome. ill try the isolation test thing later on

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