For Wi-Fi integrators

Map indoor signal, no GPS

Before Wi-Fi goes into the hall you need to know how far the existing APs reach and where the racks will cast a shadow. Leave GPS off — it would only report a wall — and switch on Wi-Fi with RTT/FTM. Walk aisle by aisle and mark each one with a photo taken through the app's own viewfinder; a month later the photo is what tells the aisles apart. What comes out: points with photographs, and at each one the list of APs, their strength, the MLO links and a measured distance over RTT. A coverage map before the first new access point is bought.