Bluetooth is guided media
Answers
Answer:
Introduction To Wireless Communication or Transmission : ... Current wireless phones include 3 and 4G networks, Bluetooth and Wi-Fi technologies. Wireless transmission is a form of unguided ( Media, in which the signals are not guided through a solid medium, are known as unguided media ) media.
Explanation:
Explanation:
It is defined as the physical medium through which the signals are transmitted. It is also known as Bounded media.
Types Of Guided media:
Twisted pair:
Twisted pair is a physical media made up of a pair of cables twisted with each other. A twisted pair cable is cheap as compared to other transmission media. Installation of the twisted pair cable is easy, and it is a lightweight cable. The frequency range for twisted pair cable is from 0 to 3.5KHz.
A twisted pair consists of two insulated copper wires arranged in a regular spiral pattern.
The degree of reduction in noise interference is determined by the number of turns per foot. Increasing the number of turns per foot decreases noise interference.
Transmission media
Types of Twisted pair:
Transmission media
Unshielded Twisted Pair:
An unshielded twisted pair is widely used in telecommunication. Following are the categories of the unshielded twisted pair cable:
Category 1: Category 1 is used for telephone lines that have low-speed data.
Category 2: It can support upto 4Mbps.
Category 3: It can support upto 16Mbps.
Category 4: It can support upto 20Mbps. Therefore, it can be used for long-distance communication.
Category 5: It can support upto 200Mbps.
Advantages Of Unshielded Twisted Pair:
It is cheap.
Installation of the unshielded twisted pair is easy.
It can be used for high-speed LAN.
Disadvantage:
This cable can only be used for shorter distances because of attenuation.
Shielded Twisted Pair
A shielded twisted pair is a cable that contains the mesh surrounding the wire that allows the higher transmission rate.
Characteristics Of Shielded Twisted Pair:
The cost of the shielded twisted pair cable is not very high and not very low.
An installation of STP is easy.
It has higher capacity as compared to unshielded twisted pair cable.
It has a higher attenuation.
It is shielded that provides the higher data transmission rate.
Disadvantages
It is more expensive as compared to UTP and coaxial cable.
It has a higher attenuation rate.
Coaxial Cable
Coaxial cable is very commonly used transmission media, for example, TV wire is usually a coaxial cable.
The name of the cable is coaxial as it contains two conductors parallel to each other.
It has a higher frequency as compared to Twisted pair cable.
The inner conductor of the coaxial cable is made up of copper, and the outer conductor is made up of copper mesh. The middle core is made up of non-conductive cover that separates the inner conductor from the outer conductor.
The middle core is responsible for the data transferring whereas the copper mesh prevents from the EMI(Electromagnetic interference).
Transmission media
Coaxial cable is of two types:
Baseband transmission: It is defined as the process of transmitting a single signal at high speed.
Broadband transmission: It is defined as the process of transmitting multiple signals simultaneously.
Advantages Of Coaxial cable:
The data can be transmitted at high speed.
It has better shielding as compared to twisted pair cable.
It provides higher bandwidth.
Disadvantages Of Coaxial cable:
It is more expensive as compared to twisted pair cable.
If any fault occurs in the cable causes the failure in the entire network.
Fibre Optic
Fibre optic cable is a cable that uses electrical signals for communication.
Fibre optic is a cable that holds the optical fibres coated in plastic that are used to send the data by pulses of light.
The plastic coating protects the optical fibres from heat, cold, electromagnetic interference from other types of wiring.
Fibre optics provide faster data transmission than copper wires.
Diagrammatic representation of