Estimote

Broadcasting Power

Broadcasting Power is the power with which the beacon broadcasts its signal, i.e. the power with which the signal leaves the beacon's antenna. The owner of the beacon can change this setting e.g. using the Estimote app. The value ranges between -30 dBm and +4 dBm, lowest to highest power settings respectively. The higher the power, the bigger the beacon's range and the more stable the signal, but it also shortens the battery life of the beacon— so you might want to consider lowering it to the minimum required by your use case.

RSSI

RSSI is the strength of the beacon's signal as seen on the receiving device, e.g. a smartphone. In general, the greater the distance between the device and the beacon, the lesser the strength of the received signal. Think: if you drop a stone into a container with water, the wave is bigger near the point of impact and smaller further away.

Measured power

Measured Power is a factory-calibrated, read-only constant which indicates what's the expected RSSI at a distance of 1 meter to the beacon. Combined with RSSI, this allows to estimate the actual distance between the device and the beacon.