Explain the Coaxial Cable in Details

Coaxial Cable consists of 2 conductors. The inner conductor is held inside an insulator with the other conductor woven around it providing a shield. An insulating protective coating called a jacket covers the outer conductor.

Explain the Coaxial Cable in Details


The outer shield protects the inner conductor from outside electrical signals.

The distance between the outer conductor (shield) and inner conductor plus the type of material used for insulating the inner conductor determine the cable properties or impedance.

Typical impedances for coaxial cables are 75ohms for Cable TV, 50 ohms for Ethernet Thinnet and Thicknet.

The excellent control of the impedance characteristics of the cable allow higher data rates to be transferred than Twisted Pair cable.

Explain the Coaxial Cable in Details

  • A coaxial cable is a type of shielded and insulated copper cable that is used in computer networks and to deliver cable TV services to end users.
  • The outer conductor acts as a shield against noise and crosstalk. The outer conductor is enclosed and whole cable is protected by a plastic cover.
  • The distance between the outer conductor and inner conductor plus the type of material used for insulating the inner conductor determine the cable properties.
  • The most standard coaxial cable connector BNC (Bayone – Neill concelman ) connector.
  • BNC connector is used to connect to the end of the cable to a device(Such as TV).
  • Used in cable TV networks
  • Used in analog telephone networks
  • Used in Ethernet LAN.

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