VSAT stands for “Very Small Aperture Terminal”, which refers to the technology whereby data is sent and received via an antenna. The antenna size is typically a 1.2m diameter for Ku-Band, or 1.8m diameter for C-Band. The difference between the two is the Frequency band in which they operate.
C-Band systems operate on a lower frequency (3-6 Ghz) and are therefore less affected by rain fade, however due to the size of the hardware they are more costly.
Ku-Band systems operate on a higher Frequency (12-14 Ghz), and allow for smaller antennas, but depending on the power of the satellite can be affected by bad weather conditions.
A typical VSAT installation will consist of the following:
- A satellite antenna capable of transmitting and receiving data.
- A BUC (Broadband Up Converter) for transmitting.
- An LNB (Low Noise Block) for receiving.
- Coaxial Cable from the antenna to the indoor modem.
- A satellite modem capable of receiving and transmitting data such as e-mails, internet or video.
Key benefits of VSAT
A VSAT solution becomes a viable solution if a client requires any of the following:
- Connectivity where ADSL or cable cannot be accessed.
- Always-on, fast broadband services.
- Quick deployment.
- Secure data transmission.
- Independent of government operators.
- Fixed monthly costs, available in a variety of packages.
- Private, professionally managed teleport.
- 24/7 monitoring and support.
- Worldwide coverage.
- Single hop, direct access to international internet exchanges.
- Point-to-point, single hop dedicated satellite connectivity.
- No data caps