VSAT (Very Small Aperture Terminal) is a two-way satellite communication technology that uses small antennas to transmit and receive data over long distances. VSAT systems are typically used in remote areas where terrestrial communication infrastructure is unavailable or unreliable.

VSAT systems consist of three main components:

A VSAT terminal, which includes a small satellite dish antenna, a transceiver, and a modem.
A geostationary satellite in orbit around the Earth.
A network operations center (NOC), which manages the VSAT network and provides support to users.
To transmit data, the VSAT terminal sends a signal to the geostationary satellite, which then relays the signal to the NOC or another VSAT terminal. The NOC or receiving VSAT terminal then demodulates the signal and delivers the data to the intended recipient.

VSAT technology has a number of advantages over other communication technologies, including:

Global reach

VSAT systems can be used to communicate anywhere in the world, regardless of the availability of terrestrial communication infrastructure.


VSAT systems are highly reliable and can operate in all weather conditions.


VSAT systems can be used to support a wide range of applications, including voice, video, and data communications.