Q 1.1 How does satellite communication work?
Quite simply, satellites are radio relays located in space. Because of their wide field-of-view satellite relays can connect widely separated…
Q 1.2 How has satellite communication technology grown?
The satellite era began in 1957 with launch of the Russian Sputnik satellite. Within a span of some sixty years…
Q 1.3 Give a timeline of evolution of satellite systems. The table highlights a sample of important milestones in the development of satellite systems, mainly (but not exclusively) related to satellite communications.
Year Milestone Credit 1926 First liquid propellant rocket launched by R H Goddard in the USA 1942 First successful launch …
Q 1.4 Why do we need satellite communication?
Satellite communication is economic when separation between users is large (hundreds of kilometre), in presence of difficult terrain or sea…
Q 1.5 What are the applications of satellite communication?
Satellite communication is economic when separation between users is large (hundreds of kilometre), in presence of difficult terrain or sea…
Q1.6 What are the limitations of satellite communication systems?
Satellite communication networks require enormous start-up costs and gestation lasting several years. A careful techno-economic study is therefore essential before…
Q 1.7 How do satellite television system work?
Satellite broadcast system comprise a program source, such as a studio or a remote camera covering an event, connected to…
Q 1.8 What are the advantages of satellite communication?
Satellite communication is economic when separation between users is large (hundreds of kilometre), in presence of difficult terrain or sea…
Q 1.9 What are the challenges of using satellites for data communication?
Satellite links are prone to bit errors and propagation delay which can be problematic for some types of data applications….
Q 1.10 How can satellites be used for railway communication?
Satellite communication provides a powerful medium for continuous communication to the railways in remote locations and harsh environmental conditions. Typical…