Telecommunication Satellites

#1

Telecom Sat History

https://www.mitel.com/articles/history- ... munication

https://www.itu.int/en/history/Pages/IT ... age-5.aspx [1] [1]

https://www.russianspaceweb.com/spacecraft_comsats.html

https://youtube.com/watch?v=Nmhf2VK3xBE

How The First TV Satellite Changed The World - Communications Satellites Part 2 ~ Scott Manley
https://youtube.com/watch?v=_8gfVF2yLUs

How Satellite TV Went From NASA Experiments Into Millions Of Homes - Comsats Episode 5 ~ Scott Manley
https://youtube.com/watch?v=_d2mD_nuCZ8

#2

https://www.n2yo.com/satellites/?c=10&srt=3&dir=1&p=0 [1]
https://www.aeroflap.com.br/en/syncom-the-first-geostationary-satellite/

https://www.youtube.com/watch?v=1iGYtxW3WcE

Syncom 1 failed soon after launch, but Syncom 2 and 3 each operated for more than two years. In a historic first, Syncom 3 transmitted television signals of the 1964 Olympic games in Tokyo to the United States. Geostationary satellites still provide the bulk of space-based communcations today. [1]

https://ntrs.nasa.gov/api/citations/19650019255/downloads/19650019255.pdf

https://secure.boeingimages.com/archive/Syncom--the-First-Geosynchronous-Communications-Satellite-2JRSXLJ2M2M2.html

On July 26, 1963 the first geosynchronous communications satellite, Syncom 2 was launched by NASA on a Delta rocket B booster from Cape CanaveralOffsite Link. "Its orbit was inclined rather than geostationary. . . The satellite successfully kept stationary at the altitude calculated by Herman Potočnik NoordungOffsite Link in the 1920s.

"During Syncom 2's first year, NASA conducted voice, teletype, and facsimile tests, as well as 110 public demonstrations to acquaint people with Syncom's capabilities and invite their feedback. In August 1963, President John F. Kennedy in Washington, D.C., telephoned Nigerian Prime Minister Abubakar Balewa aboard USNS Kingsport docked in Lagos Harbor; the first live two-way call between heads of state by satellite. The Kingsport acted as a control station and uplink station' [1][2]

#3

https://en.wikipedia.org/wiki/Medium_Earth_orbit

https://reliasat.com/satellite-communic ... eo-to-leo/

https://www.meconnect.net/blog/how-will ... ry-solutio

https://www.skytrac.ca/resources/magazi ... atellites/ [1]

For satellites located in LEO, the time it takes for a signal to be transmitted from the ground to a satellite and back is approximately 0.003 seconds. For a satellite in GEO, that delay increases to 0.25 seconds, requiring echo control and time delay considerations that are more negligible for lower altitude orbits.

https://www.eutelsat.com/en/satellites/elo-fleet.html
https://oneweb.net/solutions/land-mobil ... s-solution
https://www.telesat.com/broadcast/

https://www.huawei.com/en/huaweitech/fu ... etworks-6g

https://www.fujitsu.com/global/vision/i ... broadband/