NavListen, an independent witness for the sky

Field notes

NavListen describes a station architecture rather than a conventional web app: a u-blox or Septentrio receiver feeds raw messages through an ESP32, while a secure element preserves station identity and sensors record local conditions. The proposed board is a four-layer, 127.0 × 50.8 mm design, and the system retains broadcast frames beside decoded state. The page presents sample network-health data, but the extract does not verify how broadly the network is operating.