Comparable observations over time.
Satellite counts, C/N0 aggregates, fix health, receiver indicators, temperature, and power status—only when hardware exposes them.
Sentinel Network
A fixed point of reference.
Sentinel is a receive-only GNSS observation node concept. It builds a local baseline and contributes compact, privacy-conscious summaries only under owner control.
Concept · hardware not yet in productionApproximate public placement.
Exact home or node coordinates are not published. Owners choose contribution and retention behavior.
Store, forward, and recover.
A bounded local ring buffer can bridge network outages. Signed OTA is required before production beta.
Measure before solar design.
The first desk prototype uses USB. Battery and solar choices follow real average and peak consumption tests.
Receive only—never transmits interference
Sentinel observes supported receiver diagnostics. It does not generate RF interference, identify every RF source, or prove intent. A regional incident should require agreement between independent nearby nodes, Scanner summaries, or authoritative evidence.
Setup direction
- Connect to a temporary setup access point.
- Name the node and select Wi-Fi.
- Choose privacy and contribution controls.
- Test sky view and the server connection.
- Disable the setup network after success.