rural wings training satellite communications system overview
DESCRIPTION
Some characteristics of satellite –can be rapidly deployed beyond the terrestrial networks –offers high bandwidths such as 2Mbps/512Kbps (asymetric is typical though not mandatory –suits most situations, including data distribution, Internet, streaming, voice –has inherent broadcast/multicast capabilities –requires some care in installation –is less used for highly interactive applications like gamingTRANSCRIPT
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Rural Wings Training
Satellite Communications System Overview
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Why satellite?
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7EL=0°EL=5°
EL=15°
EL=30°
EL=45°
S1
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WC
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BAS service on S1 beamof [email protected]°E.D/L Beam Pointing: 4.15°E; 6.92°N
TW T Power: 101.6 Watts.
Map of Receiver Antenna Size forDIG(41.5Mbps,OH=0.0Mbps, 3/4FEC,RS=188/204,QPSK)
(30.0 MSym/s) carrier withservice availability >= 99.50 %/yr.
0.75 m.
0.9 m.
1.2 m.References
Fri Dec 15 18:15:26 2006 \ pc5h114-2
![Page 3: Rural Wings Training Satellite Communications System Overview](https://reader036.vdocuments.us/reader036/viewer/2022062306/5a4d1b427f8b9ab0599a16f9/html5/thumbnails/3.jpg)
Some characteristics of satellite– can be rapidly deployed beyond the terrestrial networks
– offers high bandwidths such as 2Mbps/512Kbps (asymetric is typical though not mandatory
– suits most situations, including data distribution, Internet, streaming, voice
– has inherent broadcast/multicast capabilities
– requires some care in installation
– is less used for highly interactive applications like gaming
![Page 4: Rural Wings Training Satellite Communications System Overview](https://reader036.vdocuments.us/reader036/viewer/2022062306/5a4d1b427f8b9ab0599a16f9/html5/thumbnails/4.jpg)
Equipment - Outdoors
Satellite Dish & Transmitter
Wireless Antenna Omni-directional
Wireless Access Point
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Equipment - Indoors
PC / LaptopSatellite ModemRadio Receivers
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Connections
Coaxial
To the Internet
Satellite GatewayLocal Users
Wifi Connections
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Satellite Hub
London
Host
Bewholme
Home
Bewholme
How does it work?What happens when you type a URL <CR>?
Server
Australia?
Request sent by satellite
Request sent by wifi
Request sent by cable
Page received by wifi
Page received by satellite
Page received by cable
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Flexibility
+ Games terminals
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Standards & Safety
– The equipment complies with all relevant standards and safety requirements
– These are too numerous to mention but are available on request
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Performance
– What can you do with 1 Mbps
• Time to download a photo• Etc
– Sharing Bandwidth
• Don’t always see top speed• Shared just like ADSL• Use it at non-popular hours
– Characteristics
• E.g. batched surfing