Communications

Broadband satellite internet access maps - Details of worldwide satellite antenna beam coverage patterns, dish sizes and transmit powers required for two-way broadband access for business users.
www.satsig.net/ivsat.htm

Iridium From Concept to Reality - Technical article by Robert Nelson describing the Iridium satellite communication system.
www.aticourses.com/news/iridium.htm

Lloyd's Satellite Constellations - Information on Iridium, Teledesic, Globalstar, Orbcomm, ICO Global, Ellipso, Skybridge and other systems, as well as general information on satellites.
www.ee.surrey.ac.uk/Personal/L.Wood/constellations/

NASA JPL Optical Communications Group - The Optical Communications Group at NASA / JPL is developing the next generation of satellite communications systems that are 10 to 100 times faster than current state-of-the-art systems.
lasers.jpl.nasa.gov

Satellite Communications and Business Electronics Consultants - Broadband Internet access, video conferencing, mobile applications for Europe, Middle East and Africa, Marine and other remote locations for business applications.
www.astutechnologies.co.uk/

Satellite Link Budget Calculations - Calculates uplink and downlink link budgets together with azimuth and elevation
www.geocities.com/senol_gulgonul/linkbudget/

Space Telecommunication Programmes of the European Space Agency - Comprehensive overview of ESA's projects and technology research in space telecommunication systems. Includes tendering information and updated project status.
telecom.esa.int/telecom/www/language/index.cfm?flanguageid=5

www.satcoms.org.uk - The Satcoms Community Website - This website has been developed for the scientists and engineers of the United Kingdom Satellite Communications industry and for everyone interested in learning about satellite communications.
www.satcoms.org.uk