Signals are heard locally
A supported receiver listens passively for compatible Direct Remote ID broadcasts. It does not transmit to, command or identify the aircraft owner.
RECEIVE / RECONCILE / PUBLISH
A shared picture built from local evidence.
Layer400 connects independently operated Remote ID receivers. Each station reports what it actually hears; the network combines duplicate reports and produces a deliberately limited public view.
- PUBLIC MAP
- FREE TO OPEN
- FREE ACCOUNT HISTORY
- ROLLING OUT
- RECEIVER LOCATION
- NOT PUBLIC
- RAW IDENTIFIERS
- NOT PUBLIC
NETWORK METHOD
Every stage has a boundary.
The browser never talks directly to the ingest service or database. Public map responses contain only the fields intended for public display.
The station signs its upload
Each receiver has its own revocable device identity. Account passwords are not stored on feeder hardware and a lost receiver can be disabled without resetting the owner's account.
Reports become observations
Duplicate receptions are associated with the same current track while station provenance remains available to protected systems for quality and operations.
Public data is minimised
Exact station positions, account details and sensitive evidence stay out of the anonymous map. Public identifiers rotate and displayed serials are masked.
The map states what it knows
Age, method and receiver count are shown without turning them into claims of legality. Delayed or stale information is labelled rather than silently interpolated.
Access follows purpose
The free-account roadmap includes 24-hour history. Longer history and operational workflows will be account-gated; public access will not become a bulk-download route.
EVIDENCE, NOT CERTAINTY
The map tells you where the limits are.
A credible network makes uncertainty visible. It does not fill radio gaps with invented positions or suggest that receiver count is regulatory approval.
Last received is explicit
Track age is measured from the most recent accepted observation. If updates stop, the interface marks the track stale and removes it from the current view.
Receiver count is context
Multiple stations hearing a compatible broadcast can improve confidence in reception. It cannot verify the pilot, intent, authorisation or truth of every transmitted field.
Coverage is measured
Coverage grows only where participating receivers report genuine observations. Empty areas are never painted as covered merely because a station exists nearby.
WHO THE NETWORK SERVES
One map, different responsibilities.
The public layer remains useful without exposing the protected data and workflows needed by contributors or operational customers.
PUBLIC VIEWER
Current privacy-filtered tracks, core search and honest network state.
CURRENT VIEWAVAILABLEFREE ACCOUNT
Everything public, plus 24-hour replay and a small set of personal saved views when released.
24 HOURS HISTORYROLLING OUTCONTRIBUTOR
Private receiver health, accepted reports, coverage contribution, own-feed view and earned network benefits.
OWN DATA DETAILSEARLY ACCESSOPERATIONS
Place-based monitoring, geofences, alerts, incident timeline, wallboard and audited team access.
CONTRACTED RETENTIONPLANNED