Its measurement depends on the receiving device. Thus, its a device-specific estimate for how well the bluetooth device is able to receive someone else. There is a point at which trying to obtain more signal delivers diminishing returns, because the quality of the connection is defined by more values than just RSSI (you will find more information on the other measurements in the Mobile Signal Strength Recommendations page). RSSI is an indicator for how well receivable a receiver considers a signal thats typically not inherently dominated by the signal strength, but by factors like noise and interference. The closer to 0 dBm, the stronger the signal. However, -70 dBm and higher values usually equate to the modem being in an excellent coverage area. The exact numbers vary between cellular carriers. The higher the number, the better the signal. This value relates to the signal strength of the cellular signal from the tower to the modem. The RSSI is indicated by a negative dBm value. ![]() In telecommunications, Received Signal Strength Indicator (RSSI) is a measurement of the power present in a received radio signal.
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