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LAYER400AIRSPACE INTELLIGENCE NETWORK
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How Layer400 works

A local broadcast.
A bigger picture.

Receivers listen where they are installed. Layer400 brings accepted observations together so people can explore the traffic the network actually receives.

CONTRIBUTOR NETWORK / LAYER400
010203400RADIO → NETWORK
Local receivers. A shared view.HOW THE NETWORK CONNECTS
The contribution path

From radio to map.

Each stage has a job. Keeping them distinct makes the result easier to understand.

  1. Receive

    A local radio hears a supported aircraft or drone transmission.

  2. Decode

    The receiver turns the broadcast into a structured observation.

  3. Deliver

    The receiver sends it to Layer400 and checks for acceptance.

  4. Display

    Eligible reports contribute to tracks and coverage information.

One platform. Two ways in.

Build with us. Deploy with us.

The contributor network

For people who enjoy building, receiving and exploring. Install on your own Pi and contribute with equipment you control.

Explore the community →

Layer400 for business

For organisations with a site and an operational requirement. Scope the hardware, installation and ongoing needs with us.

Explore business deployments →
Under the surface

What a useful map needs.

A real observation

A connection badge is not a received aircraft. Radio health, decoded data and accepted uploads are checked separately.

Read the receiver states →

A useful location

An antenna installation point and an aircraft position are different things. Public coverage does not reveal the exact receiver pin.

Understand receiver privacy →