seek4sat - Satellite Internet & Broadcast

Interactive toolsNasa - J-Trak 3D - satellites positon in real-time

http://science.nasa.gov/RealTime/JTrack/3D/JTrack3D.html

fourmilab - View from satellite - the earth viewed from each satellite

http://www.fourmilab.ch/earthview/satellite.html

For professionnals : Link Budget Calculation

http://www.satsig.net/linkbugt.htm

About existing geostationnary satellites

TSE - Satellites Encyclopedia

http://www.tbs-satellite.com/tse

Data Base 2.500 satellites in C & Ku-bands - footprints incl. antenna sizes

http://www.geo-orbit.org/

Satellites, positions, frequencies, TV channels

http://www.lyngsat.com/

Satellites News

http://www.sat-index.com/

http://seek4sat.com

http://www.atrexx.com

Basic courses

Basics of the geostationary orbit

http://celestrak.com/columns/v04n07/

To understand everything about geostationary orbit

http://members.aol.com/geostat2/

The site of the International Engeeneering Consortium (see : radio protocols)

http://www.iec.org/online/

Technologies of Spread Spectrum

http://www.sss-mag.com/

Space Segment Requests & Offers

Satellite Capacity Trading Platform

http://www.atrexx.com 

 Internet

The Internet Bakbone - Providers, Maps of main networks

http://navigators.com/isp.html