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VSAT Terminals: What Are They and How Do They Work?

Satellite communication touches our lives in ways most people don’t fully appreciate. From GPS to satellite TV to the communication networks that make modern economic, military and political affairs possible, there are few areas of life that the rise of SATCOM technology has not shaped in some way, directly or indirectly. While visions of massive arrays and constellations might be the first thing that comes to mind when some people think of satellites, today we’re going to focus on something a little less visually impressive but just as important; the Very Small Aperture Terminal, or “VSAT.

What are VSAT Terminals?
VSAT Terminals, also known as “private earth stations,” are used primarily for business, but also are also used for military and government applications. That satellite dish on a neighbor’s home or the roof a corporate building is a VSAT Terminal.

The “very small” part of the acronym refers to the size of the antenna reflector, typically less than 3.8 meters in diameter. A VSAT terminal is relatively simple, consisting of two primary components: The Outdoor and Indoor units.

The Outdoor Unit (ODU) encompasses everything you see outside the building where the terminal is located. This is the equipment that enables the terminal to transmit and receive signals to and from the satellite.
The Indoor Unit (IDU) consists of the satellite modem and an IP router which connects to an Ethernet interface.

What Are VSAT Terminals Used For?

A VSAT terminal is used to provide satellite-based telecommunications and internet access to companies and individuals. For businesses, the primary advantage to setting up a VSAT network is that it allows the users to have their own private communications infrastructure that they have complete control over, as opposed to relying on existing infrastructure controlled by other parties.

Perhaps the most widely understood use of VSAT networks would be the service offered by satellite TV providers like DirecTV. Customers pay to have a terminal installed at their home and subscribe to the service to gain access to the network. But that’s just scratching the surface of what VSAT networks can do.

VSAT terminals are used in military and naval applications to ensure communication even in remote locations. They are also used in narrowband financial applications like point-of-sale transactions, and broadband data like Voice over Internet Protocol (VoIP), and satellite internet. VSAT networks can be used to facilitate communication in emergency and disaster relief efforts, as well as industrial applications, scientific research and more.

Anywhere reliable, stable, narrowband and broadband communication is required, VSAT networks can be a great solution for users who either don’t have access to existing telecom infrastructure or prefer not to use it. If satellite communications are an integral feature of the modern world, VSAT terminals are one of the most important technologies that make it all possible.

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Media contact: Shoma Ferrari, shoma@globalsatellite.us, socialmedia@globalsatellite.us

For more information about this article visit: https://blog.bliley.com/vsat-terminals-what-are-they-and-how-do-they-work

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