Causes of low SNR

  • I am using a ADSL 2+ broadband service. My router shows very low SNR margin. While I quite understand what is SNR, I was curious to know what causes low SNR practically.

    What kind of router are you using?

  • pajaja

    pajaja Correct answer

    8 years ago

    There are many things that can cause low SNR. If you put aside natural reasons such as attenuation caused by distance, most of the time problem lies in bad infrastructure. Bad cables (damaged shielding and exposed wires), ingress noise, crosstalk, impedance mismatches, bad connectors and micro-reflections, bad splitters and filters and stuff like that. It depends on many different things and it varies in real time.

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Content dated before 7/24/2021 11:53 AM

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