define transmission media
Dear student,
Guided Transmission Medium
Guided transmission media is also known as bounded media or wired media. They comprise cables or wires through which data is transmitted. The signals travelling through this media is bounded by the physical limits of the medium.
The popular guided media are −
- Twisted pair cable
- Coaxial cable
- Power lines
- Fiber optics
Unguided Transmission Medium
Unguided transmission media is known as wireless media. These media are limited by geographical boundaries.
Unguided signals travels in three ways −
- Ground propagation
- Sky propagation
- Line – of – sight propagation
The common unguided transmissions are −
- Radio transmission
- Microwave transmission
- Infrared transmission
- Light transmission