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RF signal triangulation + spectrum allocation lookup for the Flipper Zero and Android. The Flipper streams live Sub-GHz RSSI over USB or Bluetooth LE; the Android app logs GPS + signal, estimates a transmitter's location on a map, and looks up the regulatory allocation of any frequency you observe.

Honest disclaimer: this is a low-cost, mobile RSSI approach. It gives an approximate search area, not a GPS-grade fix. Read Understanding Accuracy before trusting any output.

Start here

I want to…	Page
Install and take my first fix	Quick Start
Connect wirelessly over Bluetooth	Bluetooth Setup
Understand why my error is 15 m or 150 m	Understanding Accuracy
Get the best fix in the field	Field Guide
Fix a connection problem	Troubleshooting
Build the FAP/APK myself	Building from Source

What it is (and isn't)

• ✅ A mobile RF telemetry pipeline — RSSI → log-distance model → Nelder–Mead trilateration → estimated location + RMS error.
• ✅ Genuinely useful for lost stationary trackers, interference hunts, keyfob/garage transmitters, and RF education — 15–50 m accuracy in open environments.
• ❌ Not direction finding (no antenna array), not sub-10 m precise, not for moving transmitters, not reliable indoors, and not for surveillance or evidence.

See the main README for the full feature list, field-validation table, and comparison with real RF equipment.