Drone Acronyms
VSAT in Drones: What It Means & Where It’s Used
Definition
A Very Small Aperture Terminal (VSAT) is a two-way satellite ground station with a small dish antenna, typically ranging from 0.75 to 3 meters in diameter. VSATs connect to satellites for data, voice, and video communications, enabling reliable connectivity in remote or underserved areas.
Usage
In drone operations, Very Small Aperture Terminal systems provide communication links where terrestrial networks like LTE, 5G, or fiber are unavailable. They support mission-critical applications such as BVLOS (Beyond Visual Line of Sight) operations, real-time video streaming, and data transfer from remote locations, including oceans, deserts, and disaster zones.
Relevance to the Industry
For industries like maritime shipping, oil and gas, disaster response, and defense, drones require stable connectivity far from cellular coverage. Very Small Aperture Terminal fills this gap by offering satellite-based broadband links. This technology ensures drones can transmit telemetry, payload data, or live video feeds even in the world’s most remote areas.
How Does a VSAT (Very Small Aperture Terminal) Work?
Very Small Aperture Terminal operates through three key components:
User Terminal: The small dish antenna and modem installed at the ground station or mobile unit.
Satellite: Acts as the relay, often in geostationary orbit, carrying signals to and from the VSAT terminal.
Hub Station: A larger earth station that manages network operations and connectivity.
The process works as follows:
The drone transmits data to a nearby VSAT terminal.
The terminal uplinks the data to a satellite.
The satellite relays it back down to a hub station.
The hub routes it to the internet or private networks.
This system ensures drones remain connected even in areas without terrestrial infrastructure.
Example in Use
A humanitarian organization deploys drones to survey flood damage in a remote region. With no cellular coverage available, the drones use a mobile VSAT terminal to stream live video back to relief coordinators, enabling faster response and resource allocation.
Frequently Asked Questions About VSAT (Very Small Aperture Terminal)
How is VSAT different from SATCOM?
VSAT refers specifically to small satellite terminals for broadband connectivity, while SATCOM is a broader term for all satellite-based communications.
Can VSAT be mobile?
Yes. Modern VSAT terminals can be mounted on vehicles, ships, or even portable cases, making them ideal for field drone operations.
Is VSAT reliable for drone video streaming?
Yes, although bandwidth is limited compared to fiber or 5G. Still, VSAT offers sufficient speeds for live video and telemetry in remote missions.
For examples of these acronyms visit our Industries page.
