weekend project: get 3D position from trilateration between three LoRa ground stations! GNSS (green) vs LoRa ToF trilateration (red), as computed onboard.

SX1281 and it's time-to-flight ranging feature right?

1280, 1281 doesn't have the ranging

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Does the whole system operate sequentially on one frequency channel or in parallel on three different frequency channels?

Yikes. If anybody ever adapted this to non public spectrum (restricted band) it could be used for naughty purposes 👿. Even in public it is scary accurate!

How are the receivers synchronized?

@GrandpaRoy2

Why not UWB?

So damn cool

How did you get trilatetation with Lora? Any info is very much important for a development

look for LoRa RTToF