What is Remote Sensing?
admin To measure the characteristics of an object from a distance, the technique of remote sensing is used. By this technique we can collect all information about an object without making…
Principles of Communication
Explain the different losses in Transmission lines?
The energy losses that happen in case of transmission lines are shown below: 1. Conductor Heating 2. Dielectric heating 3. Radiation Losses It is observed that the radiation loss in…
What is Satellite Communication?
In satellite communication, signal transferring between the sender and receiver is done with the help of satellite. In this process, the signal which is basically a beam of modulated microwaves…
What is Line Communication?
In line communication there is a physical connection between source and destination. The wired connections between two points are known as transmission lines. The wires that are most popular for…
Explain the equivalent circuit of a transmission line?
We know that the conductors are present in a two wire line. Dielectrics are also present between them. It is also clear that conductors can be of any length. Conductors…
What is Cable System?
Cable system is basically a collection of no of co-axial lines enclosed together in a tube or pipe. This cable system also consists of other useful things, along with the…
What are Telephone Links?
In today’s fast world, telephone is a necessity. Telephony is not limited to earth. We can also converse from earth to any other planet e.g. moon, mars etc. It depends…
What is Optical Communication?
It is a system in which we use the optical range of frequencies to send or receive the information to distant place from one point to another. During the last…
Explain the different types of LASERS?
There are basically four types of lasers 1. Gas lasers 2. Solid lasers 3. Liquid lasers 4. Semi Conductor lasers Gas lasers:- These lasers contain a mixture of helium and…
What are the main components of LASERS?
The lasers mainly consist of three major components. These are Active medium, Pump, and resonator guide. First we will discuss active medium. It can be in molecular or in atomic…