Satellite Broadband is an alternative for internet users who do not have the availability of DSL or Cable Broadband access. In remote or rural areas Satellite Broadband provides high speed internet access that is more reliable than the internet access via phone network. Satellite Broadband services can Asynchronous or Synchronous. In case of Asynchronous Satellite Broadband service, the upstream and downstream speeds are different, with downstream speed being faster than the upstream speed. Synchronous Satellite Broadband services have the same upstream and downstream speeds.
Download speeds are in the range of 64 - 400 kbps while upload speeds are up to 33kbps maximum with a normal 56kbps modem. Speeds also depend upon traffic volume and weather conditions.
A Satellite Broadband system involves the Satellite, Base station, Receiving antenna at consumer's end and a phone modem for uploading data to base station and further to Satellite. Though the data is downloaded directly to receiving antenna at consumer's end, however a phone modem is required for uploading data to base station and to satellite.
However now 2-way satellite connection services are also being made available whereby the phone modem is no longer required for data upload. The 2-way satellite broadband services can give download speeds of up to 512 kbps and upload speeds of 64 or 128 kbps. Moreover the connection is always-on since phone modem is not required, instead there is a special satellite modem connected to the PC.