Copyright 2006-2007 - JestaCom
Site By:
Techo's Tips
-sm.jpg)
Jae's Soapbox
Technology Explained
Last issue, I was fascinated by the technology we encountered during our Northern Hemisphere excursion. This issue we start to look at some of that technology. First up is the technology used to get internet and mobile phone networks to ships at sea via Low Earth Orbit satellites or LEOs.
Low Earth Orbit (LEO) refers to a satellite which orbits the earth at altitudes between (very roughly) 200 miles and 930 miles.
Low Earth Orbit satellites must travel very quickly to resist the pull of gravity -- approximately 17,000 miles per hour. Because of this, Lowe Earth Orbit satellies can orbit the planet in as little as 90 minutes.
Low Earth Orbit satellite systems require several dozen satellites to provide coverage of the entire planet.
Low Earth Orbit satellites typically operate in polar orbits.
Low Earth Orbit satellites are used for applications where a short Round Trip Time (RTT) is very important, such as Mobile Satellite Services (MSS).
Low Earth Orbit satellites have a typical service life expectancy of five to seven years.
Next issue: How they work.
Last issue, I was fascinated by the technology we encountered during our Northern Hemisphere excursion. This issue we start to look at some of that technology. First up is the technology used to get internet and mobile phone networks to ships at sea via Low Earth Orbit satellites or LEOs.
Low Earth Orbit (LEO) refers to a satellite which orbits the earth at altitudes between (very roughly) 200 miles and 930 miles.
Low Earth Orbit satellites must travel very quickly to resist the pull of gravity -- approximately 17,000 miles per hour. Because of this, Lowe Earth Orbit satellies can orbit the planet in as little as 90 minutes.
Low Earth Orbit satellite systems require several dozen satellites to provide coverage of the entire planet.
Low Earth Orbit satellites typically operate in polar orbits.
Low Earth Orbit satellites are used for applications where a short Round Trip Time (RTT) is very important, such as Mobile Satellite Services (MSS).
Low Earth Orbit satellites have a typical service life expectancy of five to seven years.
Next issue: How they work.
NEW !! BLOG
Click HERE