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Transmission Media




Definition

Aphysical system used to carry a communication signal from one to another system.

Types of Transmission Media
  • Physical or wired or guided transmission media
  • Wireless or unguided transmission media

Example of Transmission Media
Wired Transmission Media




Coaxial Cable
  • A networking cable consisting of centre wire inside a grounded,cylindrical shield, capable of sending data at high speeds.
coaxial cable
Twisted-pair Cable
  • Anetworking cable consisting of wire strands twisted in sets of two and bound into a cable

Fiber-Optic Cable
  • Anetworking cable that utilizes hundres of thin transparents fiber over which lasers transmits data as light
fiber optic
Wireless Transmission Media




Communication Satellite
  • An earth-orbiting device that relays communications signals over long distances

communicationsatellite


Broadcast Radio
  • Wireless transmission medium that distributes radio signal through the air over long distances and short distances.

broadcast


Cellular Radio
  • Is a form of broadcast radio that is in wide use for mobile communication.
cellularradio



Infrared
  • Send signals using infrared light waves from one device to another
infrared



Microwaves
  • Radio waves that provide a high-speed signal transmission using electromagnetic radio waves




Bluetooth
  • A networking standard for every short-range wireless connections : the devices are automatically connected once they get within the allowable range.
bluetooth



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Definition
Communication Devices
Transmission Media
Advantages and Disadvantages