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    Sync lower than BT - when does DLM start?

    This is a discussion on Sync lower than BT - when does DLM start? within the Sky Broadband help forums, part of the Sky Broadband help and support category; Hello, I am asking for assistance regarding my new broadband configuration. With BT I got this: Connection Information Line state ...

    1. #1
      bbtech's Avatar
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      Question Sync lower than BT - when does DLM start?

      Hello,

      I am asking for assistance regarding my new broadband configuration.

      With BT I got this:

      Connection Information

      Line state Connected
      Connection time 6 days, 11:43:46
      Downstream 6,623 Kbps
      Upstream 1,072 Kbps

      ADSL Settings

      VPI/VCI 0/38
      Type PPPoA
      Modulation G.992.5 Annex A
      Latency type Interleaved
      Noise margin (Down/Up) 6.2 dB / 5.6 dB
      Line attenuation (Down/Up) 47.4 dB / 25.2 dB
      Output power (Down/Up) 10.3 dBm / 1.6 dBm

      With Sky, on connection I was getting this:

      ADSL Link Downstream Upstream
      Connection Speed 4091 kbps 606 kbps
      Line Attenuation 47.5 dB 29.4 dB
      Noise Margin 6.4 dB 16.7 dB

      A recent check shows this:

      ADSL Link Downstream Upstream
      Connection Speed 4091 kbps 606 kbps
      Line Attenuation 47.5 dB 29.4 dB
      Noise Margin 5.5 dB 16.0 dB

      The noise margins are falling, which can be good in someways, yet Sky target 7dB... when does Sky start their DLM line services as I would quite like to get the 6.6Mbps sync we did get.

      Could you see Sky's 7dB margin giving me near 6.6Mbps? and could I achieve much more?

      George.


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      Re: Sync lower than BT - when does DLM start?

      It looks like you will not get any more, you are below Sky's default so this means you may actually loose some speed rather than gain any. BT also appear to have been using a lower default margin, which will also reduce your speed with Sky.
      Please plug into your Test socket using only the ADSL cable and filter supplied by Sky and post your stats.
      How to test your ADSL in the Master Test Socket

      TomD


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    4. #3
      bbtech's Avatar
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      Re: Sync lower than BT - when does DLM start?

      Maybe.

      DLM appears to have started as I now have the following stats:


      ADSL Link Downstream Upstream
      Connection Speed 5209*kbps 797*kbps
      Line Attenuation 47.5*dB 29.3*dB
      Noise Margin 7.1*dB 13.8*dB

      Could any further improvement be expected. I would really like a match to what I had before:

    5. #4
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      Re: Sync lower than BT - when does DLM start?

      I doubt you will get anymore on the downstream
      as sky use a 7db margin

      it should start doing the upstream soon though

     

     

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