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What speed should I expect on 24mb BB?

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  • 10-01-2009 10:03pm
    #1
    postie
    Registered Users Posts: 88 ✭✭


    I got connected to BT on their 24mb package but the modem is syncing at 8124/507 and on speedtest.net it gets 6800/416. I rang them and they said this is what the line is capable of (although when they originally tested they said it would be at least 12mb).
    The line attenuation is 39.8 and SNR of around 8. This indicates the line should be capable of more I would have thought.
    I'm particularly dissapointed at the upload speed.
    Am I expecting too much or should I insist BT up the speed?
    Thanks for any advice.

    P


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    #2
    Spear
    Moderators, Computer Games Moderators, Technology & Internet Moderators, Help & Feedback Category Moderators Posts: 25,291 CMod ✭✭✭✭Spear


    postie wrote: »
    I got connected to BT on their 24mb package but the modem is syncing at 8124/507. I rang them and they said this is what the line is capable of (although when they originally tested they said it would be at least 12mb).
    The line attenuation is 39.8 and SNR of around 8. This indicates the line should be capable of more I would have thought.
    I'm particularly dissapointed at the upload speed.
    Am I expecting too much or should I insist BT up the speed?
    Thanks for any advice.

    P

    That's about right for that attenuation.


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    #3
    dub45
    Moderators, Technology & Internet Moderators Posts: 12,448 Mod ✭✭✭✭dub45


    Yep once the snr goes below 10 you are usally in trouble best to downgrade and you will get more stability - they should not have signed you up for that package.

    http://www.kitz.co.uk/adsl/lowSNR.htm


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    #4
    postie
    Registered Users Posts: 88 ✭✭postie


    Sorry the SNR is actually 12.4..I replaced my modem this evening. Attenuation still 39.8/40. If thats the capacity of the line then so be it...


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    #5
    Gonzo
    Moderators, Science, Health & Environment Moderators Posts: 16,883 Mod ✭✭✭✭Gonzo


    unfortunately the line speed always seems to sync lower than what is estimated by line checkers etc.

    My Line Attenuation is 36.50 with an SNR Margin of 16 and my modem only sync's at 5120/512 which imo is very dissapointing. Eircom originally told me that my line cud easily achieve 6megs and the line checkers all told me 8megs.


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    #6
    postie
    Registered Users Posts: 88 ✭✭postie


    dub45 wrote: »
    Yep once the snr goes below 10 you are usally in trouble best to downgrade and you will get more stability - they should not have signed you up for that package.

    http://www.kitz.co.uk/adsl/lowSNR.htm

    Thanks for the link.
    I typed my line stats in here http://www2.farina1.com/ADSL/default.aspx
    and it says I could get a bit more (its ADSL2+). To be honest I'd be happy if only the upload increased. Am I being optomistic?


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  • Options
    #7
    postie
    Registered Users Posts: 88 ✭✭postie


    Gonzo wrote: »
    unfortunately the line speed always seems to sync lower than what is estimated by line checkers etc.

    My Line Attenuation is 36.50 with an SNR Margin of 16 and my modem only sync's at 5120/512 which imo is very dissapointing. Eircom originally told me that my line cud easily achieve 6megs and the line checkers all told me 8megs.

    Gonzo, Is yours an LLU line?


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    #8
    Gonzo
    Moderators, Science, Health & Environment Moderators Posts: 16,883 Mod ✭✭✭✭Gonzo


    mines eircom line and im on the 7.6meg package

    I put my info into link above and it gives me

    Your maximum line connection speed using an ADSL (up to 8Mbps) service is: 8128Kbps
    If your service provider uses ADSL2+ the maximum line speed likely is: 13390Kbps
    With ADSL2+ the maximum IP throughput (result from a speedtest) is likely to be around: 11850Kbps

    My modem syncs at 5120/512 on eircom every time despite what the website thinks I should get. Its a direct connection from modem into socket, no splitters, filters or sky digital, alarms etc. 2km from exchange.
    Based on what I am now getting using adsl1 I doubt i'll do better than 8meg if Eircom ever get the finger out and upgrade exchange and service to adsl2+


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