Dan the IT Man

THE HOMELAB, LOOKING UP

Aircraft, overhead.

Radio signals. A Raspberry Pi. A little perspective on the sky above Southern California.

EXPLORE BEFORE THE FIRST SIGNALEnter the signal lab
1090 MHz ADS-B

Waiting for receiver

TRACKED —ON MAP —No live data yet
SOUTHERN CALIFORNIARegional view · not receiver location
Loading the regional map…

Drag to explore. Use + / − to zoom.

ALTITUDE<10k10–30k>30k ftUnknown

One receiver, one local view. Coverage will depend on the antenna, terrain and aircraft broadcasts.

Privacy & limitations

ENGINEERING YOU CAN EXPLORE

Make it fail.
Watch it recover.

Freeze an update. Drop a connection. Inspect what survives the data filter. Six interactive experiments show how the tracker earns your trust before the receiver arrives.

Open the signal lab
THE RECOVERY EXPERIMENT · SIMULATED
  1. 01Fresh observationsAccept recent, valid data.
  2. 02Connection interruptedReport the failure immediately.
  3. 03Old positions clearedAn empty map tells the truth.
  4. 04Fresh data restoredWait for renewed progress.

THE SIGNAL BEHIND THE MAP

Built here.
Received from above.

A Raspberry Pi at the antenna. An isolated processing server in the homelab. A carefully bounded public view. Every layer has a distinct job and a failure state.

The project notes follow the architecture, the recovery incident that improved the build, and the checks still waiting on hardware.

Read the engineering story

An experimental hobby project. Not for navigation or operational decisions. Basemap requests go to OpenFreeMap; the map does not request your location.