What is Attenuation in Computer Networking

Definition of Attenuation:

In computer networking , attenuation is the loss of signal strength measured in decibels (dB). Attenuation occurs in networks for various reasons, below are some common reasons, due to which attenuation occurs :

  • range – both wireless and wired transmissions gradually dissipate in strength over longer reaches
  • interference – on wireless networks, radio interference or physical obstructions like walls also dampen communication signals
  • wire size – on wired networks, thinner wires suffer from higher (more) attenuation than thicker wires

Line Attenuation:


On DSL Networks, line attenuation measures signal loss between the home and the access point provider’s DSL (switchboard). Typical values ​​for the attenuation of the line to a DSL connection is between 5 dB and 50 dB (lower values better). Some broadband routers see these attenuation values ​​on the console pages, though they are usually interested only in advanced network administrators for troubleshooting connectivity problems.

Attenuation in Other Contexts

The word “attenuation” sometimes applies in other environments besides computer networks. For example, professional sound mixers may use attenuation techniques to manage sound levels when blending different audio recordings together.


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