https://devzone.nordicsemi.com/f/nordic-q-a/8839/how-to-pca20006-nrf51822-bluetooth-smart-beacon-kit-tx-power-controlit will try to lower the RF, TX power Bluetooth is not sure what to do because the first time What things do I need to solve ? ex)component, software,hardware I &#39;ll have to change some of the file ?en-USTelligent Community 13Mon, 24 Aug 2015 12:52:57 GMThttps://devzone.nordicsemi.com/thread/32505?ContentTypeID=1Mon, 24 Aug 2015 12:52:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:07cccba0-4c0e-4df6-a226-96554f8774b5Stefan Birnir Sverrisson<p>Hi</p> <p>You can change the TX power in the Beacon firmware, see more on <a href="https://devzone.nordicsemi.com/question/38565/cant-set-tx-power-level-using-sd_ble_gap_tx_power_settx_power-in-s130/">this thread</a>. You then have to load your new firmware via a programmer, see how to connect a programmer <a href="https://devzone.nordicsemi.com/question/20371/ble_app_beacon-and-nrf51822-ek/?answer=20857#post-id-20857">here</a>.</p><div style="clear:both;"></div>