VSAT Network
VSAT Network
A very small aperture terminal (VSAT) is a two-way ground station that transmits and receives data from satellites. A VSAT is less than three meters tall and is capable of both narrow and broadband data to satellites in orbit in real-time. The data can then be redirected to other remote terminals or hubs around the planet. A VSAT system usually consists of the following two components:
- The outdoor unit, which consists of- a dish antenna, block up-converter (BUC), low noise block down converter (LNB), and Ortho Mode Transducer (OMT), is placed in direct line of sight to the satellite outdoors.
- The indoor unit consists of a satellite modem and IP routers that connect to the end user's device.
How VSAT Network works
- A VSAT user needs a box that interfaces between the user’s system, i.e., computer, TV, or any other device, and an outside antenna with a transceiver.
- The transceiver receives or sends signals to a transponder placed on the satellite in orbit.
- The satellite then sends and receives these signals from an earth station called the HUB station of the VSAT system.
- All the end users are interconnected through the HUB station via the satellite.
- The end users can communicate with each other only through the HUB station.
- Every transmission first goes to the HUB station, which transmits via the satellite to the desired end user.
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