How do you enter the Internet other than telephone dial - up if you live too far from a headphone party office forDSLand there is nocable TVon your street ? Satellite Internet access may be worth believe . It ’s ideal forruralInternetuserswho want broadband access . planet net does not usetelephonelines or cable television systems , but instead uses a satellite dish fortwo - way(upload and download ) data communication . Upload speed is aboutone - tenthof the 500 kbps download speeding . cable system and DSL have higher download speeds , but satellite organization are about 10 time faster than a normal modem .
Firms that offer or plan to offer two - means orbiter Internet include StarBand , Pegasus Express , Teledesic and Tachyon . Tachyon service is available today in the United States , Western Europe and Mexico . Pegasus Express is the two - way version of DirecPC .
Two - way planet net lie in of :
The key installation planning essential is aclear view to the Dixieland , since the orbiting orbiter are over the equator orbit . And , like satellite tv set , Sir Herbert Beerbohm Tree and leaden rains can dissemble receipt of the net signals .
Two - way planet Internet uses Internet Protocol ( IP)multicastingtechnology , which intend up to5,000 channelsof communication can simultaneously be served by a single planet . IP multicasting sends datum from one point to many points ( at the same meter ) by sending datum in pack together data format . Compression reduces the size of the data and the bandwidth . Usual dial - up land - found tellurian systems have bandwidth limitations that prevent multicasting of this magnitude .
Some orbiter - Internet service still ask you to have a telephone dial - up or overseas telegram modem connection for the information you post to the Internet . The planet data point downlink is just like the common terrestrial tie-in , except the artificial satellite transmits the data point to your computing machine via the same dish that would allow you to meet a wage - Per - Viewtelevisionprogram .
So , if you are in a rural area and you want broadband admittance to the cyberspace , satellite Internet may be for you !
