Wardriving
Map sub-GHz activity along a route using your phone's location.
Echo can log where it hears sub-GHz activity so you can build a map or heatmap of a route. Echo provides the radio side, what it heard and how strong it was, and your phone provides the location.
How it works
As Echo hears sub-GHz signals it streams each one to the app. The app tags it with your phone's current location and builds a heatmap, placing each signal where it was heard strongest.
Because the location comes from your phone, wardriving accuracy follows your phone's GPS, and it pauses whenever the Bluetooth connection drops.