https://devzone.nordicsemi.com/f/nordic-q-a/104962/controlling-ble-tx-power-in-nrf52840Hello, Currently, I am running a BLE application in my nrf52840 DK. I Need to increase the BLE TX power and for that, I have used the static TX power method via the KConfig macro CONFIG_BT_CTLR_TX_PWR_PLUS_8=y. I have used the NRF Connecten-USTelligent Community 13Mon, 23 Oct 2023 12:04:15 GMThttps://devzone.nordicsemi.com/thread/451708?ContentTypeID=1Mon, 23 Oct 2023 12:04:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5afe6a89-3006-487e-b9ea-21f46ce065a1Bendik Heiskel<p>Hi,</p> <p>Using RSSI to check the TX power isn&#39;t very reliable, especially if the antenna on the board haven&#39;t been tuned. A better way to check if the TX power is set correctly is to read the <a href="https://infocenter.nordicsemi.com/topic/ps_nrf52840/radio.html?cp=5_0_0_5_19_13_46#register.TXPOWER">TXPOWER</a> register for the radio peripheral.</p> <p>This can easily be done using nrfjprog:<br /><pre class="ui-code" data-mode="text">nrfjprog --memrd 0x4000150C</pre></p> <p>&nbsp;</p> <p>Both <code>CONFIG_BT_CTLR_TX_PWR_PLUS_8 </code>and<code> CONFIG_BT_CTLR_TX_PWR_ANTENNA </code>can be used for setting the TX power. <code>CONFIG_BT_CTLR_TX_PWR_ANTENNA</code> will set the TX power at the antenna, so if a FEM is used it will calculate the required TX power from the SoC based on the TX gain of the FEM to give the final TX power requested using <code>CONFIG_BT_CTLR_TX_PWR_ANTENNA</code>.</p> <p></p> <p>Best regards,</p> <p>Bendik</p><div style="clear:both;"></div>