Find out whether your signal gets through
Terrain is what stops a handheld, and terrain is the one thing the app can see. Drop a target and NavGPS profiles the ground between you and it; sweep for coverage and it shows everywhere you could be heard from.
Steps
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Open the radio planner
Map tab → the radio icon in the left tool column. -
Drop a target
Tap where the other radio is. NavGPS reads the elevation along the line between you and says whether the path is clear or blocked, and by what. -
Sweep for coverage
Coverage sweeps the terrain around you and shades where you can be heard from, which is the better tool when you are choosing where to stop. -
Move and re-check
Ridges matter more than watts. Re-run it from a hundred metres up the hill and the answer often changes.
Worth knowing
- This is a prediction from terrain only. It cannot see trees, buildings or weather — treat it as planning guidance, not a guarantee.
- It uses the same elevation data the 3D view and slope shading already cache, so it works wherever that has been sampled.