A very small aperture terminal (VSAT) is a two-way satellite ground station with a dish antenna that is smaller than 3.8 meters. The majority of VSAT antennas range from 75 cm to 1.2 m. Data rates, in most cases, range from 4 kbit/s up to 16 Mbit/s. VSATs access satellites in geosynchronous orbit or geostationary orbit to relay data from small remote Earth stations (terminals) to other terminals (in mesh topology) or master Earth station "hubs" (in star topology).
VSATs are used to transmit narrowband data (e.g., point-of-sale transactions using credit cards, polling or RFID data, or SCADA), or broadband data (for the provision of satellite Internet access to remote locations, VoIP or video). VSATs are also used for transportable, on-the-move (utilising phased array antennas) or mobile maritime communications.
· Private network establishment.
· Leased lines and VPN establishment.
· Video conferencing, Tele training.
· Common communications support.
· Broadband Internet access.
· Trunking for mobile network.
· Broadcasting, TV on demand.
- VSAT utilizes the latest telecommunications technologies to minimize cost.
- VSAT not only supports the telephone service but also many other broadband services such as internet access, video conferencing, Tele training, etc.
- VSAT is a highly secured telecommunication service.
- Support multi-services
- Large coverage
- VSAT can be deployed in almost any rural and remote areas.
- Reasonable charges
- Short provisioning lead-time
- Quick service provisioning due to compact equipment, easy installation and simple registration