Over the years, people have been using different techniques to navigate across the world. Traditionally, people used to depend on landmarks and stars to travel between different locations, while compasses and maps helped them from getting lost. The discovery of…
Frequency Modulation Frequency Modulation is the encoding of information in a carrier wave by varying the frequency of the carrier wave at that instant corresponding to the variation of the base waveform to be transmitted. Amplitude Modulation Amplitude Modulation is…
The satellites orbit around a central massive body in either a circular or an elliptical manner. A satellite orbiting about the earth moves in a circular motion at a constant speed and at a fixed height by moving with a…
What is a Satellite? Based on their purpose, there are two kinds of artificial satellites. They are geostationary satellites and polar satellites. Types of Satellites: Geostationary Satellite: These satellites are placed into orbit at a distance of around 35,800 km…
Analog and digital signals are the types of signals carrying information. The major difference between both signals is that the analog signals have continuous electrical signals, while digital signals have non-continuous electrical signals. The difference between analog and digital signal…
Amplitude modulation and frequency modulation are used to transmit data using the method of modifying a carrier signal. The main difference between both modulations is that in frequency modulation, the carrier wave frequency is modified as per the transmit data.…
Amplitude modulation is a modulation technique commonly used for transmission of information via a radio carrier wave. This is the earliest modulation used in radio to transmit voice. It was developed by Landell de Moura and Reginald Fessenden in the…
The communication system is a system which describes the information exchange between two points. The process of transmission and reception of information is called communication. The major elements of communication are the Transmitter of information, the Channel or medium of communication and the Receiver of information. The communication system is…
Neptune is a fascinating world, and not much is known about it. Perhaps, it is because Neptune is the most distant planet from the sun. Very few exploratory missions have ventured that far. Regardless, it is a planet full of…
The moon that we see almost every night is a natural satellite of the Earth. This means that the moon revolves around the earth on a regular path. The gravitational attraction between the earth and the natural satellite holds it in its orbit even…