India soon to enter into ‘High Speed Internet’ Era with ISRO’s launch of 3 new satellites
 Source : News Bharati English  Date : 29-May-2017

Sriharikota, May 29: The dream of Prime Minister Narendra Modi – Digital India has paved the way to ‘Reality’ as India soon will enter into the ‘High Speed’ Internet Era. The Indian Space Research Organization (ISRO) is looking forward to launching three more communication satellites in coming months.

According To the announcement, ISRO will launch three communication satellites namely, GSTA-19, GSAT-11 and GSTA-20. ISRO has announced to launch three satellites with an aim to provide high-speed Internet in India. The first satellite GSAT-19 will be launched in June this year, while the other two – GSAT-11 and GSAT-20, will be launched thereafter. The other two satellites GSAT-11 and GSAT-20 will be launched in 2018.                                

Chairman of ISRO, Kiran Kumar said that “GSAT-19 will be launched by GSLVMk III, ISRO’s next-generation launch vehicle boosted by an indigenous cryogenic engine that is capable of carrying a four-tonne satellite to the geosynchronous transfer orbit. These satellites will use multiple spot beams (a special kind of transponder that operates at a high frequency) that will increase internet speed and connectivity. These multiple spot beams will cover the entire country.”

A GSAT satellite is capable of supporting one gigabyte of data transfer per second, which means the GSAT-19 will be able to transfer data at four gigabytes per second, making it equivalent to four satellites.

ISRO scientist says the GSAT-11 is slated to be launched in January 2018 and will have the data rate of 14GB per second, while the GSAT-20 is set to launch by the end of next year.The Indian space agency is aiming to cover the entire country with a satellite that will offer a data rate of 70GB per second.

“The communication satellites, to be used for the purpose, will use multiple spot beams (a special kind of transponder that operates at a high frequency) that will increase internet speed and connectivity. These multiple spot beams will cover the entire country,” ISRO’s Chairman Kiran Kumar added.

With the launch of these satellites, ISRO’s is expected to serve about 450-465 million of citizens with the high-speed internet connection by June, according to Internet and Mobile Association of India. The traditional satellite technology requires broad single beam to cover wide regions and is able to transfer data at 1 Gb/per second. GSAT 19, on the other hand, will be able to provide a speed of 4 Gb/per second – the idea being the narrower the beam, more is the power.

Tapan Misra, Director of Ahmedabad-based Space Application Centre, said “This (GSAT 19) satellite will use eight beams. GSAT-11, which is heavier than GSAT-19, will be launched by the year-end and will use 16 beams. It will be able to transfer data at the rate of 13 GB/per second. GSAT-20, whose launch is set at the end of 2018, will use 40 beams. Each beam will have two polarizations, which will effectively make them 80 beams. This satellite will have the data rate of 60-70 Gb/ per second.”