7.1.1.6.1. Satellite Communication

In simple words, it is the electronic digital world for communicating or accessing information over computer networks without physical movement of the sender and the receiver.

Satellite communication refers to the use of satellites to send and receive signals for communication purposes. This technology allows people to communicate over long distances, access information, and use various services like satellite TV and internet. The key feature is that it connects users without the need for any physical movement, meaning communication can occur instantly across great distances.

Think of satellite communication like a giant game of telephone where instead of passing a message through a line of friends, a satellite sends your voice or data to others directly from space. When you use a cell phone to call someone far away or watch your favorite show on satellite TV, satellites are facilitating that communication.

Satellites touch human lives in many ways. Every time you use a cell phone to call a friend, send an SMS or watch a popular programme on cable television, you are using satellite communication.

Satellites play a crucial role in our daily lives by enabling various forms of communication. For example, when you make a phone call or send a text message, the signal often travels to a satellite, which then relays it back down to another user's phone, regardless of their location. Similarly, television services rely on satellites to broadcast programs to viewers, ensuring that even remote areas can access entertainment and information.

Imagine you're in a remote village, and you want to call your family who live in a city far away. Instead of using wires that might not reach you, you could use a satellite—just like a lifeguard watching the beach from a tall tower—to connect your call directly. This way, you can reach them instantly even if there are mountains or valleys in between.

Communication through satellites emerged as a new area in communication technology since the 1970s after U.S.A. and former U.S.S.R. pioneered space research.

The exploration of satellite communication began in the 1970s when the United States and the Soviet Union made significant advancements in space technology. These developments allowed for the launch of satellites that could facilitate communication over long distances, revolutionizing how people around the world connect. As technology advanced, the design and capabilities of these satellites improved, enabling faster data transmission and better services.

Think of the development of satellite technology like the evolution of a smartphone. Just as smartphones have become more advanced over the years—becoming faster, smaller, and more capable—satellites have evolved from simple devices into complex systems that handle massive amounts of data and communications effectively.

The speed at which this electronic network has spread is unprecedented in human history. There were less than 50 million Internet users in 1995, about 400 million in 2000 A.D. and over two billion in 2010.

The rapid growth of satellite communication has significantly influenced global connectivity. Since the introduction of the internet and satellites, the number of users has exploded. This expansion means more people can access information, communicate with each other, and participate in the digital economy. It highlights how satellite technology has made it possible for millions to connect and share information instantaneously.

Imagine throwing a party where initially only a few friends came (representing the few internet users in the early days). Over time, more and more people hear about it and join in until, within a short span, it becomes one of the biggest gatherings around. The advent of satellite communication has similarly brought millions together in the digital world, allowing everyone to share ideas, messages, and information quickly.

India has also made great strides in satellite development. Aryabhatt was launched on 19 April 1979, Bhaskar-I in 1979 and Rohini in 1980.

India's journey in satellite communication began with the launch of its first satellite, Aryabhatt, in 1975. Since then, India has developed several satellites for communication, weather monitoring, and scientific research. These satellites have enhanced India's capability to communicate across the nation and have contributed to its advancements in technology and infrastructure.

Think of India’s satellite journey like a student moving through grades in school. Beginning with basic concepts, the student (India) learns and develops skills (launching Aryabhatt) to eventually become capable of handling complex projects and contributing to global technology (like consistently launching advanced communication satellites).

As billions use the Internet each year, cyberspace will expand the contemporary economic and social space of humans through e-mail, e-commerce, e-learning and e-governance.

The future of satellite communication is bright, with billions of users relying on the internet for various activities including emails, online shopping, learning, and accessing government services. Satellite technology will continue to play a vital role in expanding these opportunities globally, making information and services more accessible, especially in remote areas.

Imagine the internet as a vast marketplace where you can buy, sell, learn, and communicate without leaving your home. Satellite communication acts as the infrastructure that makes this marketplace accessible to everyone, no matter where they live, just like how a well-constructed road network allows towns and villages to connect to a bustling city market.

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