A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military applications. Many communications satellites are in geostationary orbit 22,300 miles (35,900 km) above the equator, so that the satellite appears stationary at the same point in the sky; therefore the satellite dish antennas of ground stations can be aimed permanently at that spot and do not have to move to track the satellite. Others form satellite constellations in low Earth orbit, where antennas on the ground have to follow the position of the satellites and switch between satellites frequently.
Satellite radio is defined by the International Telecommunication Union (ITU)'s ITU Radio Regulations (RR) as a broadcasting-satellite service. The satellite's signals are broadcast nationwide, across a much wider geographical area than terrestrial radio stations, and the service is primarily intended for the occupants of motor vehicles. It is available by subscription, mostly commercial free, and offers subscribers more stations and a wider variety of programming options than terrestrial radio.
Sirius Satellite Radio was a satellite radio (SDARS) and online radio service operating in North America, owned by Sirius XM Holdings.
Ivan Alexander Getting was an American physicist and electrical engineer, credited with the development of the Global Positioning System (GPS). He was the co-leader of the research group which developed the SCR-584, an automatic microwave tracking fire-control system, which enabled anti-aircraft guns to destroy a significant percentage of the German V-1 flying bombs launched against London late in the Second World War.
Simon "Si" Ramo was an American engineer, businessman, and author. He led development of microwave and missile technology and is sometimes known as the father of the intercontinental ballistic missile (ICBM). He also developed General Electric's electron microscope. He played prominent roles in the formation of two Fortune 500 companies, Ramo-Wooldridge and Bunker Ramo Corporation.
The Aerospace Corporation is an American nonprofit corporation that operates a federally funded research and development center (FFRDC) in El Segundo, California. The corporation provides technical guidance and advice on all aspects of space missions to military, civil, and commercial customers. As the FFRDC for national-security space, Aerospace works closely with organizations such as the United States Space Force and the National Reconnaissance Office (NRO) to provide "objective technical analyses and assessments for space programs that serve the national interest". Although the USSF and NRO are the primary customers, Aerospace also performs work for civil agencies such as NASA and NOAA as well as international organizations and governments in the national interest.
COMSAT is a global telecommunications company based in the United States.
Eberhardt Rechtin was an American systems engineer and respected authority in aerospace systems and systems architecture.
Commercial use of space is the provision of goods or services of commercial value by using equipment sent into Earth orbit or outer space. This phenomenon – aka Space Economy – is accelerating cross-sector innovation processes combining the most advanced space and digital technologies to develop a broad portfolio of space-based services. The use of space technologies and of the data they collect, combined with the most advanced enabling digital technologies is generating a multitude of business opportunities that include the development of new products and services all the way to the creation of new business models, and the reconfiguration of value networks and relationships between companies. If well leveraged such technology and business opportunities can contribute to the creation of tangible and intangible value, through new forms and sources of revenue, operating efficiency and the start of new projects leading to multidimensional positive impact. Examples of the commercial use of space include satellite navigation, satellite television and commercial satellite imagery. Operators of such services typically contract the manufacturing of satellites and their launch to private or public companies, which form an integral part of the space economy. Some commercial ventures have long-term plans to exploit natural resources originating outside Earth, for example asteroid mining. Space tourism, currently an exceptional activity, could also be an area of future growth, as new businesses strive to reduce the costs and risks of human spaceflight.
Martine Aliana Rothblatt is an American lawyer, author, entrepreneur, and transgender rights advocate. Rothblatt graduated from University of California, Los Angeles with J.D. and M.B.A. degrees in 1981, then began to work in Washington, D.C., first in the field of communications satellite law, and eventually in life sciences projects like the Human Genome Project. She is also influential in the field of aviation, particularly electric aviation, as well as with sustainable building.
Tadahiro Sekimoto was a Japanese electronics engineer, a recipient of the IEEE Medal of Honor (2004), chairman of Japan's Institute for International Socio-Economic Studies (IISE), and former chairman of the Board of Councilors of the Japan Federation of Economic Organizations (Keidanren) who served as president and later chairman of Japan's NEC Corporation (NEC). Born in Hyōgo, Japan, Sekimoto earned his BS in physics in 1948 and his Doctor of Engineering degree in 1962 at the University of Tokyo.
The Communications Satellite Act of 1962 was put into effect in order to deal with the issue of commercialization of space communications. This act was very controversial, and was left very open-ended. The act was signed August 31, 1962 by President John F. Kennedy.
Koodli Nanjunda Ghanapathi Shankara was a space scientist from India. He was the Director of ISRO's Space Applications Centre (SAC), Ahmedabad and ISRO Satellite Centre (ISAC), Bangalore. He was the Director of Satellite Communications Program Office and Program Director, INSAT, and was looking after overall planning and direction of communication satellite program. His work in the field of transponder design and development led to a boost in India's communication satellite technology.
The IEEE Judith A. Resnik Award is a technical field award presented by the Institute of Electrical and Electronics Engineers (IEEE) to either an individual, or a team, "for outstanding contributions to space engineering within the fields of interest of the IEEE".
Joseph Vincent Charyk was widely credited as the founder of the geosynchronous communications satellite industry. He was born in Canmore, Alberta to a Ukrainian family. Early in his career, Charyk consolidated the Central Intelligence Agency, United States Air Force, and United States Navy space programs into the National Reconnaissance Office (NRO). He brought the first United States imagery satellite, CORONA, into operation and demonstrated signals intelligence technology from space. During his tenure, the NRO operated the U-2 reconnaissance aircraft and managed development of the A-12.
Eddy W. Hartenstein is a business leader and has with a career in the media industry. Hartenstein currently serves as a board member at Broadcom, where he is also lead independent director, TiVo, and Sirius XM Radio, where he is also lead independent director. He also remains a director of Tribune Publishing. He previously served as a director on the boards of City of Hope, Oath, SanDisk, Technicolor and Converse.
Raymond J. Leopold is one of the three engineers who in late 1987 conceived of and later designed the Iridium satellite constellation, the first realization of global, wireless, personal communications.
John Landrum Martin Jr. was a major general in the United States Air Force. He enlisted in the United States Army Air Corps in 1940 and flew combat missions in Boeing B-29 Superfortress bombers in the China-Burma-India Theater.
Victor B. Lawrence is a Ghanaian-American engineer credited with seminal contributions in digital signal processing for multimedia communications. During his 30-plus-year tenure at Bell Laboratories, Dr. Lawrence made extensive and fundamental personal contributions to voice, data, audio and video communications. He led numerous projects that significantly improved or enhanced every phase in the evolution of early low-speed and today’s high-speed data communications. He is a Research Professor and Director of the Center for Intelligent Networked Systems (iNetS) at Stevens Institute of Technology, where he also served as Associate Dean. He was inducted into the National Inventors Hall of Fame in 2016. He is a Member of the National Academy of Engineering, a Fellow of the IEEE, a Fellow of AT&T Bell Labs, and a Charter Fellow of the National Academy of Inventors.
