satellite communications school presentation
TRANSCRIPT
SATELLITE COMMUNICATIONS
Up… Up… & Away
And there was…
Arthur C. Clark
A space race…
Huges Aircraft Company
Pictured: Tom Hudspeth and Dr. Harold Rosen
Not Pictured: Don Williams
Earth Orbits
Low Earth OrbitUp to 2000 km
6.5 million prairie dogs tall
Medium Earth OrbitUp to 18000 km
47 thousand empire state buildings
Geostationary Earth OrbitUp to 35863 km
39 million great danes
Some architecture
Point-to-Point Point-to-Multipoint Multipoint interactivity
Point-to-Point
Point-to-Multipoint
Multipoint Interactive
The Good…
Mobile / Wireless Communications Large Coverage Area Wide Bandwidth Independent of Terrestrial Infrastructure Rapid Deployment Low Cost for adding ground sites Services from a single provider
The Bad…
Propagation Delay Voice Quality / Eco High Initial Investment Weather