Field notes

Aviation data field notes

Technical and commercial notes on GPS/GNSS interference, flight data APIs, verified ADS-B data, aviation AI agents, and professional aviation workflows.

Latest articles

Article7 min read

Using NACp as a GPS/GNSS interference indicator

Low NACp is one of the clearest public aviation data signals for degraded GNSS accuracy. The key is to analyze regional patterns and avoid attribution claims.

gps gnss interferenceGNSS interferenceNACp
Article6 min read

Flight data API use cases for aviation teams

The best flight data API use cases are not generic maps. They are repeatable workflows for teams that need verified data in their own systems.

flight data apiFlight data APIDeveloper content