Question

Describe about the Guided and Unguided media.​

Answer 1

Guided Media:

In this type of media, signal energy is enclosed and guided within a solid medium. The guided media is used either for point to point link or a shared link with various connections. In guided media, interference is generated by emissions in the adjacent cables. Proper shielding of guided media is required to reduce the interference issue.

Unguided Media:

In the unguided media, the signal energy propagates through a wireless medium. The wireless media is used for radio broadcasting in all directions. Microwave links are chosen for long distance broadcasting transmission unguided media. Interference is also a problem in unguided media, overlapping frequency bands from competing signals can alter or eliminate a signal.

Let’s see the difference between the Guided Media and Unguided Media:

Guided Media

1. The signal energy propagates through wires in guided media.

2. Guided media is used for point to point communication.

3.Discrete network topologies are formed by the guided media.

4.Signals are in the form of voltage, current or photons in the guided media.

5.<Examples of guided media are twisted pair wires, coaxial cables, optical fiber cables.

6.By adding more wires, the transmission capacity can be increased in guided media.

Unguided Media

1. The signal energy propagates through air in unguided media.

2. Unguided media is generally suited for radio broadcasting in all directions.

3. Continuous network topologies are formed by the unguided media.

4. Signals are in the form of electromagnetic waves in unguided media.

5. Examples of unguided media are microwave or radio links and infrared light.

6. It is not possible to obtain additional capacity in unguided media.

Hope it will help you....

Answer 2

Guided media :- Guided media, which are those that provide a conduit from one device to another, include twisted-pair cable, coaxial cable, and fiber-optic cable. A signal traveling along any of these media is directed and contained by the physical limits of the medium

Unguided media:- The unguided media transmission is a type of transmission medium that is used as the path for sending the information and data from one end to another end. ... The data transmitted in this medium is through electromagnetic waves so that any physical wire or cable is not required for the transmission.