VSAT

Satellite Communications Glossary

Satellite Communications — VSAT

 

 

 

 

 

 

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Information on VSAT

VSAT (VSATs) are digital C-band and Ku-band satellite communications terminals using small-diameter (aperture) antennas for the Earth stations. VSAT are used in networks that primarily support point-to-multipoint communications as part of large private networks, particularly in large retail networks to support transactions such as inventory management and credit-card authorisation. Some private networks can be very large, containing up to 5,000 terminals. The systems gets its name from the relatively small antennas used; VSAT antennas are less than 1.8-m in diameter, much smaller than traditionally used in satellite communications.
     Very Small Aperture Terminal networks mostly use the spoke-hub architecture, although more-recent networks can employ a meshed topology. Bandwidth for these networks has traditionally been around 9.6 kbps, but are now more commonly around 64 kbps per channel. Newer systems can provide much higher data rates of approximately 2 Mbps in the uplink and ten times that in the downlink.


Other topics in our resources on Satellite Communications related to VSAT include: 
 
  • Mobile satellite Internet
  • Broadband Internet satellite
  • Two-way satellite Internet
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  • Satellite Internet Providers
  • Satellite wireless Internet
  • Satellite Internet Services
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  • Satellite Internet
  • Satellite Internet Connection
  • Satellite Internet Access

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