ISRO Set to Launch US Satellite to Facilitate Voice Calls from Space via Smartphones

The Indian Space Research Organisation (ISRO) is preparing for a significant milestone in space communications. ISRO will be launching a massive American communications satellite that promises to revolutionize mobile phone connectivity by enabling voice calls directly from space. This advanced satellite technology presents a modern alternative to traditional satellite telephony services, which are currently limited and often require special devices.

First US Satellite to Be Launched by ISRO Rocket

This marks the first time that a US company will be launching a large communications satellite aboard an Indian rocket. Historically, India has launched only smaller satellites designed and built by American companies. This upcoming mission, however, will be a significant shift as it involves a major satellite designed for mobile communication, furthering ISRO's capabilities in international collaborations and its role in global space exploration.

The Satellite: AST SpaceMobile and the Bluebird Satellite

The satellite is believed to be manufactured by AST SpaceMobile, a Texas-based company specializing in satellite-based mobile communications. AST SpaceMobile's technology aims to make mobile voice calls possible directly from smartphones without the need for special equipment. Unlike current satellite-based communication services, such as Starlink, which require users to purchase dedicated handsets or special terminals, this innovation allows consumers to make calls using ordinary smartphones.

The satellite is set to be launched from Sriharikota, India, aboard the Geosynchronous Satellite Launch Vehicle (GSLV), which is typically used for large, complex missions. This particular mission will see the launch of a single Block 2 version of the Bluebird satellite, which weighs approximately 6,000 kg. The satellite will feature a large 64-square-meter antenna, about half the size of a football field, to ensure optimal signal reception and transmission.

AST SpaceMobile's Vision for Global Connectivity

AST SpaceMobile's mission goes beyond just enabling voice calls. According to the company’s CEO, Abel Avellan, the company aims to close the global connectivity gap. The technology used in the Bluebird satellite allows for broadband internet and mobile communications to be accessible even in remote regions where traditional cellular networks do not reach. This will bring affordable 5G services to billions of people around the world, particularly in rural and underserved areas.

One of the key innovations introduced by AST SpaceMobile is its ability to provide broadband services through the world’s largest-ever commercial phase array in low Earth orbit (LEO). This advancement could greatly reduce the cost and complexity associated with satellite communications, making it more accessible for everyday users.

Upcoming Launch Timeline

India’s Science Minister, Dr. Jitendra Singh, has confirmed that the satellite will be launched in early 2025, either in February or March. This event marks a significant step toward enhancing global communication networks and highlights India’s growing prominence in the space sector. According to Dr. Singh, the launch will be an "interesting mission" and will showcase India's advanced capabilities in space technology and international cooperation.

Conclusion: A Game Changer for Global Communications

This collaboration between ISRO and AST SpaceMobile represents a groundbreaking step in the future of mobile telecommunications. By enabling voice calls directly from space via smartphones, this technology has the potential to transform the way people around the world connect, especially in remote areas. The success of this mission could pave the way for further advancements in global connectivity, offering reliable and affordable 5G services to billions globally.