Satellite Internet - How it works
Satellite internet forum
Introduction and explanation of VSATs
Bentley Walker HX VSAT hub
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Relevant links on this satsig.net web site: |
European satellite ISPs Satellite Internet - How it works Satellite internet forum |
VSAT index page Introduction and explanation of VSATs |
VSAT data capacity Bentley Walker HX VSAT hub |
This page provides an explanation of what the above term means.
Direct access to the internet using direct two-way Broadband Internet ( BBI ) Satellite Interactive Terminal ( SIT ) is the future for all those people in areas where DSL, ADSL or cable modems are not possible.
Satellite Interactive Terminal ( SIT )
The Satellite Interactive Terminal
( SIT ) is simply a small satellite dish, similar to that for
satelite TV but with a RF (Radio Frequency) module in front that both receives (LNB=Low
Noise amplifier and Block down-converter) and transmits (BUC=Block
Up-Converter and high power amplifier).
Broadband Internet ( BBI )
The Broadband Internet ( BBI )
refers to the reception of a, typically, 27.5 Msym/sec carrier which provides
for fast download of web pages, MP3 audio and video etc.,
combined with a low bit rate transmit capability to allow
requests for web pages, mouse clicks, email messages etc to be
sent into the internet.
The term BBI-SIT has never really caught on. The term VSAT meaning Very Small Aperture Tterminal is far more popular. The marketing people don't like it however since it a term of long standing and associated with early larger VSATs, of 1.8m diameter or larger and needing to comply with complex planning rules and licencing. Giveing the more modern smaller terminals a different name is thought helpful in miniming licencing and regulatory problems.s
Back to: Broadband Satellite Internet access service providers
Page 20 Nov 2003, last amended 2 July 2008