https://devzone.nordicsemi.com/f/nordic-q-a/18725/nrf51-change-tx-power-when-connectedHi, is it absolutely OK to change Tx power when BLE connected?en-USTelligent Community 13Tue, 03 Jan 2017 08:30:44 GMThttps://devzone.nordicsemi.com/thread/72314?ContentTypeID=1Tue, 03 Jan 2017 08:30:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:517fe0bb-96c0-4faa-8385-6e25c3812d92Sigurd<p>Hi,</p> <p>It&rsquo;s perfectly allowed to change the TX power while you are in a connection, using the function <a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.s110.api.v8.0.0%2Fgroup___b_l_e___g_a_p___e_n_u_m_e_r_a_t_i_o_n_s.html&amp;resultof=%22%73%64%5f%62%6c%65%5f%67%61%70%5f%74%78%5f%70%6f%77%65%72%5f%73%65%74%22%20">sd_ble_gap_tx_power_set</a>. But, as mentioned <a href="https://devzone.nordicsemi.com/question/99939/best-place-to-put-sd_ble_gap_tx_power_set-to-reduce-power-during-bonding/?answer=100263#post-id-100263">here</a>, there could be a chance that the TX power is set too low for maintaining the connection.</p><div style="clear:both;"></div>