https://devzone.nordicsemi.com/f/nordic-q-a/8640/read-tx-power-from-central-deviceSetup: Galaxy S3 (Android 5.1.1), nRF52 with S132 Basically I am trying to estimate distance from the phone on the nRF52 by measuring the RSSI and in order to do this to some level of accuracy I&#39;ll need to know the TX Power on the phone. Is there aen-USTelligent Community 13Tue, 18 Aug 2015 11:16:45 GMThttps://devzone.nordicsemi.com/thread/31605?ContentTypeID=1Tue, 18 Aug 2015 11:16:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:917ad177-9cf1-4285-8eb1-eda385c10e6bSusheel Nuguru<ol> <li> <p>the peer can place its TX power in the adv data. This will not be the case if it is phone and not advertising.</p> </li> <li> <p>There is a service that can be used <a href="https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.tx_power.xml">Transmit Power Service</a>. It says that this is a mandatory service so i am guessing this should be implemented by the OS in your phone.</p> </li> </ol><div style="clear:both;"></div>