WHAT IS TRANSMISSION MEDIA ?
TRANSMISSION MEDIA
Materials or substances capable of carrying one or more signals in a communications channel.
TWO TYPES OF TRANSMISSION MEDIA ;
- Physical Transmission Media
- Wireless Transmission Media
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| PHYSICAL TRANSMISSION MEDIA |
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| WIRELESS TRANSMISSION MEDIA |
PHYSICAL TRANSMISSION MEDIA | EXPLANATION |
|---|---|
Twisted Pair Cable
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Twisted-pair cable consists of one or more twisted-pair wires bundled together.
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Coaxile Cable
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Consists of a single copper wire surrounded by at least three layers ; an insulating material , a woven or braided metal and a plastic outer coating
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Fibre Optic Cabl
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"A transmission media that uses glass or plastic fiber to carry light (lasersignals.
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| Wireless Transmission Media | Explanation |
|---|---|
| Infrared | Infrared (IR) is a wireless transmission medium that sends signals using infrared light waves. |
| Broadcast radio | Distributes radio signals through the air over long distances |
| Cellular Radio | Used widely for mobile communications, specifically wireless modems and cell phones |
| Microwave | Microwaves are radio waves that provide a high-speed signal transmission. |
| Communication Satellite | Receives microwave signals from an earth-based station, amplifies (strengthens) the signals, and broadcasts the signals back over a wide area |
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