Adsl Line Noise Margin.

ScytheScythe Join Date: 2002-01-25 Member: 46NS1 Playtester, Forum Moderators, Constellation, Reinforced - Silver
in Off-Topic
<div class="IPBDescription">Does it affect speed?</div> My router can do up and downstream tests on my phone line to check the noise margin.

I was wondering if lowering these margins would result in faster download speeds. I currently have a 15 meter phone cable between the wall and my router. I could shorten this and see how much less noise I get.

Below are the details of the tests:

<b><u>UPSTREAM</u></b>

relative capacity occupation: 13%
noise margin upstream: 31.0 db
output power downstream: 18.0 dbm
attenuation upstream: 15.0 db
carrier load: number of bits per symbol(tone)
tone 0- 31: 00 00 00 00 00 00 22 22 23 32 33 22 22 22 00 00
tone 32- 63: 00 00 00 00 00 00 00 00 00 00 00 02 22 23 33 34
tone 64- 95: 04 44 44 44 44 44 44 44 44 44 44 43 44 44 44 43
tone 96-127: 44 44 33 43 33 33 43 34 43 44 34 34 43 43 44 43
tone 128-159: 33 33 43 33 43 33 33 23 33 33 33 33 33 33 33 33
tone 160-191: 33 33 33 33 33 33 33 23 33 33 32 22 22 22 22 22
tone 192-223: 22 22 22 22 22 22 22 22 00 00 00 00 00 00 00 00
tone 224-255: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

<b><u>DOWNSTREAM</u></b>

relative capacity occupation: 15%
noise margin downstream: 45.0 db
output power upstream: 4.0 dbm
attenuation downstream: 17.0 db
carrier load: number of bits per symbol(tone)
tone 0- 31: 00 00 00 00 00 00 22 22 23 32 33 22 22 22 00 00
tone 32- 63: 00 00 00 00 00 00 00 00 00 00 00 02 22 23 33 34
tone 64- 95: 04 44 44 44 44 44 44 44 44 44 44 43 44 44 44 43
tone 96-127: 44 44 33 43 33 33 43 34 43 44 34 34 43 43 44 43
tone 128-159: 33 33 43 33 43 33 33 23 33 33 33 33 33 33 33 33
tone 160-191: 33 33 33 33 33 33 33 23 33 33 32 22 22 22 22 22
tone 192-223: 22 22 22 22 22 22 22 22 00 00 00 00 00 00 00 00
tone 224-255: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00


Any ADSL boffins in the house? I've only got a 256/64 connection. I'm pretty sure I wouldn't be stressing the line but I'm only getting 24-26 kB/s download speeds.

--Scythe--
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Comments

  • Vinegar_NinjaVinegar_Ninja Join Date: 2003-01-12 Member: 12211Members
    it wont matter at all
    ill still pwn you at doom 2, no matter how fast you run <!--emo&:p--><img src='http://www.unknownworlds.com/forums/html//emoticons/tounge.gif' border='0' style='vertical-align:middle' alt='tounge.gif' /><!--endemo-->
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  • DOOManiacDOOManiac Worst. Critic. Ever. Join Date: 2002-04-17 Member: 462Members, NS1 Playtester
    I have no idea what all those mean, but I do know that always always always the shorter the cable the better, cause the less chance there is of screwups.
    Off Topic Disagree Agree Awesome
  • WarriorWarrior Join Date: 2003-02-16 Member: 13624Members
    Little off topic but how much do you pay for ur ADSL line.
    And i think the shorter the cable the better.
    Off Topic Disagree Agree Awesome
  • ScytheScythe Join Date: 2002-01-25 Member: 46NS1 Playtester, Forum Moderators, Constellation, Reinforced - Silver
    I'm in Australia and I pay the equivalent of USD$41.28 a month.

    That's unlimited downloads too with no "shaping".

    --Scythe--
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  • WheeeeWheeee Join Date: 2003-02-18 Member: 13713Members, Reinforced - Shadow
    edited March 2004
    the line noise will go up in relation to how far you are from the C/O, and yes it does affect your speed. you might be getting 95% or so of your downstream listed max, and...75%-ish with your upstream. At least that's how it was for me.
    Off Topic Disagree Agree Awesome
  • SillyGooseSillyGoose Join Date: 2003-03-16 Member: 14572Members, Constellation
    put filters on all your phones or else you'll have to reconnect all the time.
    Off Topic Disagree Agree Awesome
  • CyndaneCyndane Join Date: 2003-11-15 Member: 22913Members
    I say remove the ADSL and go with cable, I know aussie has some nice cable connections available. :-) Or... go crazy and use a dedicated T1 :-)
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  • Dr_ShaggyDr_Shaggy Join Date: 2002-09-26 Member: 1340Members, Constellation
    <!--QuoteBegin-Scythe+Mar 19 2004, 01:37 AM--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td><b>QUOTE</b> (Scythe @ Mar 19 2004, 01:37 AM)</td></tr><tr><td id='QUOTE'><!--QuoteEBegin--> I'm in Australia and I pay the equivalent of USD$41.28 a month.

    That's unlimited downloads too with no "shaping".

    --Scythe-- <!--QuoteEnd--> </td></tr></table><div class='postcolor'> <!--QuoteEEnd-->
    I have a friend in Sydney that has some pretty hefty caps on his internet downloads. Who do you get yours from, and whats "shaping"?
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  • ScytheScythe Join Date: 2002-01-25 Member: 46NS1 Playtester, Forum Moderators, Constellation, Reinforced - Silver
    edited March 2004
    Shaping is evil.

    Your connection speed is limited (64/64) after a certain amount is downloaded. Usually in the area of 2-3 gig.

    The worst part is the ISPs can still say "UNLIMITED DOWNLOADS! BOOYAH!!!" nice and legally.

    --Scythe--

    EDIT: IDXnet.
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  • Dr_ShaggyDr_Shaggy Join Date: 2002-09-26 Member: 1340Members, Constellation
    Yeah but who is your ISP?<!--emo&???--><img src='http://www.unknownworlds.com/forums/html//emoticons/confused.gif' border='0' style='vertical-align:middle' alt='confused.gif' /><!--endemo-->
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