Compare Connection

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mrvtec

38 posts

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#26010 9-Sep-2008 13:15

hi there just wanted to compare some syncrates

i got attenuation of 43Db and SNR 9Db sync around 4.9mbit on ADSL2+ telecom broadband
just wanted to see what other people sync rates are with similar line attenuation

cheers

cyril7

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#163299 9-Sep-2008 13:49

Hi, I am 3.3km measured cable length from a ADSL1 port, 45dB atten, 11.7dB S/N, 7.168Mb/s sync. You may be better off limiting your modem to ADSL1/G.DMT, often it returns better sync rates for lines over 40dB attenuation. Your S/N is very poor also, this could will be limiting your connection speed.

Cyril

mrvtec

38 posts

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#163326 9-Sep-2008 15:31

WOW thats awsome stats considering your attenuation how did manage that kind of sync you must have nice line and a good modem im on similar stats 3km on mtroskill exchange but my snr is very low for some reason even on adsl1 hangs around 8-9db

cyril7

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#163328 9-Sep-2008 15:37

Hi, I think the saving grace for me is I live in a retirement backwash (Waikanae, full of retired civil servants) so there is not a lot of DSL circuits carried in the same wrapper as me, so few disturbers, then again I could have underestimated grey powers cyber upskill program:)

The modem is simple DSE XH9949, Broadcom chipset is the key, and a properly fitted central filter.

Should say today is a good day, typically sync rate is around 6.2Mb/s, still pretty good.

Cyril

rygrass

134 posts

Master Geek

#163342 9-Sep-2008 17:13

Hey i live 60 Meters from the exchange got new connection other day ( Pro Advanced Xtra ) SNR Margin 13db , Line Attenuation is 2 Db i syncing around 8.1 mbit's my exchange hasn't been upgraded to adsl2+ yet :( can't wait tho my Modulation is connected at ADSL_G.dmt

RobM

31 posts

Geek

#163529 10-Sep-2008 16:47

cyril7: Hi, I think the saving grace for me is I live in a retirement backwash (Waikanae, full of retired civil servants) so there is not a lot of DSL circuits carried in the same wrapper as me, so few disturbers, then again I could have underestimated grey powers cyber upskill program:)

Cyril

Waikanae here as well, Cyril - you forgot to mention the perils of the Woolworths carpark - those same grey heads and blue rinses are freak'n lethal if they get their meds messed up ... then again - that'd be OT.

oh yeah

SNR Margin:18ish Down 15 ish Up

Attu'n: 22ish 14 ish

Data Rate : 7620 900

cyril7

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#163571 10-Sep-2008 19:21

Hi Rob, yes you take your life into your hands going to the supermarket. I presume you are on the Conklin in the box at the end of PekaPeka road (just off SH1), I dont know how this is fed but one assumes with one or two E1's so 2 or 4Mb/s is best you can pull through it.

Cheers
Cyril

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RobM

31 posts

Geek

#163573 10-Sep-2008 19:27

You are a super sleuth !

Yup - that's us just down the road from that box.

Any idea when we're due for an upgrade ?

cheers, r

cyril7

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#163577 10-Sep-2008 19:33

I dont think its on any planned upgrade in the next 3-4yrear time frame. But better than a poke in the eye with a blunt stick condidering how far from town you are, I understand a past chairman of the board who lived/used to live not far away enabled that cabinet to exist :)

Cyril

RobM

31 posts

Geek

#163580 10-Sep-2008 19:43

He's still there ... I better go have a word with him.

Get us jumped up the queue ...

cyril7

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#163590 10-Sep-2008 20:01

nexttothemoon

35 posts

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#163740 11-Sep-2008 11:35

Line Mode	G.DMT	Line State	Show Time
Latency Type	Interleave	Line Up Time	00:04:23:40
Line Coding	Trellis On	Line Up Count	1

Statistics	Downstream	Upstream
Line Rate	8160 Kbps	160 Kbps
Attainable Line Rate	9504 Kbps	900 Kbps
Noise Margin	16.8 dB	24.0 dB
Line Attenuation	25.0 dB	11.0 dB
Output Power	19.8 dBm	3.6 dBm

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panther2

385 posts

Ultimate Geek
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#163915 12-Sep-2008 05:48

get around 6000kbs when ADSL2+ modulation is enabled

Modulation

ADSL_G.dmt

Item	Downstream	Upstream	Unit
SNR Margin	12	31	dB
Line Attenuation	31	18	dB
Data Rate	7392	160	kbps

mrvtec

38 posts

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#164090 12-Sep-2008 19:55

kool guys anyone outthere using adsl2+ modulation with 40ish DB attenuation

eXDee

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#164098 12-Sep-2008 20:27

Mine isn't similar, but i thought i'd post it anyway

Line Mode	ADSL2+	Line State	Show Time
Line Power State	L0	Line Up Time	05:19:08:09
Line Coding	Trellis On	Line Up Count	1

Statistics	Downstream	Upstream
Line Rate	19931 Kbps	1021 Kbps
Attainable Line Rate	19756 Kbps	973 Kbps
Noise Margin	11.4 dB	11.7 dB
Line Attenuation	12.5 dB	4.6 dB
Output Power	17.0 dBm	12.4 dBm