SNR & Attenuation levels on your ADSL line

Discussion in 'Broadband' started by Stuart, Jul 16, 2003.

  1. Stuart

    Stuart Guest

    After recent lighning experiences I decided to try re-routeing my ADSL
    router via phoneline ant-surger filter.

    The attenuation has increased from 18/11db(downstream/upstream) to 19/12db.
    SNR held steady at 18.5db.

    How do these levels compare with others (measured on a D-Link DSL504 less
    than 1km from exchange).

    The 504 was the only item attached to a phoneline that didn't sustain
    damage - so it must be pretty well defended within.

    Any downside to this 'belt & bracers' approach?
    Stuart, Jul 16, 2003
    1. Advertisements

  2. Well, those levels you indicate are very low (ie, very very good for
    HRH The Lord Buckley, Jul 16, 2003
    1. Advertisements

  3. Stuart

    johnydeath Guest

    Mine is 69/31 and SNR 3.5dB
    Not a mistake - true, and at 7km away from the exchange - Smokin!

    I know the max atten but does BT quote the worst SNR for good BB?
    johnydeath, Jul 17, 2003
  4. Dunno, but don't tell BT about your installation!

    What speeds are you getting?

    Robert Woolley, Jul 20, 2003
  5. Stuart

    johnydeath Guest

    Depends on times, smallest pipe the data has to pass through etc. I
    regularly get 45-52k for MP3s, but at least it stays synched.
    Not too many errors either - cut and paste the router details, hope it comes
    out. I get 4dB SNR during the day!!!
    Downstream Upstream
    Line Status ADSL Link Speed 576 kbps 288 kbps
    SNR 4.0 dB -
    ATEN 69 dB 31 dB
    Line Error ADSL layer FEC 9 0
    CRC 18 969
    ATM layer HEC 8 487
    Frame Counter 5445847 5733144

    Loop Distance: About 14 K ft.
    johnydeath, Jul 21, 2003
  6. I'm about 1km from the exchange - cable run is 1.9km

    from my router:

    Solwise adsl> show perf
    Downstream :
    Capacity Occupation : 11 %
    Noise Margin : 29
    Attenuation : 36
    Output Power : 12
    Upstream :
    Capacity Occupation : 37 %
    Noise Margin : 25
    Attenuation : 31
    Output Power : 17

    Robert Woolley, Jul 23, 2003
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.