What does SNR mean?

Posted on 2006-05-07
Last Modified: 2013-12-14
Been checking my router after a regrade on freedom2surf to 8mb and it has a SNR value of 3.0db. I think there is something wrong there but I'm not sure whether it should be high or low, anyone got an answer? Also I have an ATEN value of 22db down and 11db up. Anything wrong with that? Also lots of CRC values and HEC values.


Question by:levyuk
    LVL 95

    Accepted Solution

    In general, higher signal to noise is better; the signal is 'cleaner'.
    LVL 16

    Assisted Solution

    Hi levyuk,

    SNR stands for Signal to Noise Ratio.
    ATEN is short for attenuation.
    CRC stands for Cyclic Redundancy Check
    I have no idea what the heck is a HEC.

    LVL 12

    Assisted Solution

    >SNR value of 3.0db
    6 dB is considered a minimum acceptable value for stable service.
    Have you also checked the line statistics connected directly to the NID box, and thus elimininating internal wiring problems?

    LVL 57

    Assisted Solution

    A quick search for HEC show Hybrid Echo Cancellation.

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