What are guided unguided media?

Answer 1

guided media is the transmission medium in which data/signal is guided by the cable or wire so used to a specific path. there are 4 types of guided media

--> open wire

-->twisted pair

--> co-axial cable

-->optical fibre

for more details open the link -----

http://www.techbooksforfree.com/intro_to_data_com/page37.html#37

Answer 2

guide media is that where we use any path for communcation like cables(coaxial,fibre optic,twisted pair)etc. unguided media is also called wireless where not any phyisical path is used for transmission.

OR

S.No.

Guided Media

Unguided Media

1.

The signal energy propagates within the guided media .i.e. through wires.

The signal energy propagates through air.

2.

It is mainly suited for point to point line configurations.

It is mainly used for broadcasting purpose.

3.

The signal propagates in the form of voltage, current or photons.

The signal propagates in the form of electromagnetic waves.

4.

Examples of guided media are:-

=>Twisted Pair Cable

=>Co-axial Cable

=>Optical Fiber Cable

Examples are:-

=>Microwave or Radio Links

=>Infrared

Answer 3

unguided signal can travel through no. of ways.

sky propagation

ground propagation

line of sight.

in ground propagation, radio waves travle through the lowest portion of the from the atmosphere ,hugging the earth. these low-frequesncy signals emanate in all directions from the transmitting antana and follow the curvature of planet. distance depends on the amounts of power in the signal: the greater the power, the greater the distance.

in sky propagation,higher-frequency radio waves radiate into the ionosphere(the layer of where particular exits as ions) wher they are reflacted back to earth.this types if transmission allows for greater distances with lower output power.

in the line-of-sight propagation, very high-frequency signals are transmitted in straight lines directly from antenna to antenna. Antenna must be directional, facing each other,and either tall enough or close enough not to be affected by the curvature of the earth. line-of-sight propagation in tricky radion transmission cannot be completely focused.

Answer 4

In a guided medium signal passes through a physical pathway(s),while in an unguided medium signal passes through a vacuum,it is independent of a physical pathway.