In theory, terrestrial fiber-optic networks send data at the speed of light, a rate that radio signals can't match. But in practice, proponents say, satellites are often faster. According to a Salomon Brothers report, it takes 4.7 minutes to download one megabyte of data using a conventional modem. Via satellite, the same data takes 20 seconds. There are inherent quality limitations, however.
Interference can corrupt data and delay transmission.
But India's government still locks out private satellite operators, as do governments throughout the region. Until regulatory barriers come down, satellite companies' reach will continue to exceed their grasp. All Rights Reserved. Terms under which this service is provided to you. Read our privacy guidelines .