VSAT, or Very Small Aperture Terminal, is a satellite communication system that uses small dish antennas to send and receive data. These systems are commonly used for internet access, voice communication, and data transfer in remote locations where traditional wired connections are unavailable. VSAT technology operates by connecting a small dish to a satellite in orbit, allowing users to communicate over long distances. It is widely utilized in various industries, including telecommunications, maritime, and oil and gas, providing reliable connectivity for businesses and individuals in hard-to-reach areas.