Telstar 1 (1962) and Early Bird (1965) were able to transmit several hundred audio channels simultaneously in addition to a television program exchanged between continents.
•
The Pythagorean theorem allows us to calculate easily how far a satellite is visible at such a great height.
satellite | Sirius Satellite Radio | XM Satellite Radio | communications satellite | Satellite | satellite television | Natural satellite | balloon | Communications satellite | Astro (satellite TV) | Sleeping Satellite | Satellite television | International Telecommunications Satellite Organization | Six Finger Satellite | Polar Satellite Launch Vehicle | natural satellite | Geostationary Operational Environmental Satellite | Defense Meteorological Satellite Program | Balloon (aircraft) | Television Infrared Observation Satellite | Public Radio Satellite System | HMS Satellite | Five Weeks in a Balloon | Arab Satellite Communications Organization | Upper Atmosphere Research Satellite | Transformational Satellite Communications System | Tracking and Data Relay Satellite System | Tracking and Data Relay Satellite | The Sheriff and the Satellite Kid | The Red Balloon |