https://devzone.nordicsemi.com/f/nordic-q-a/112200/how-to-control-nrf21540-in-esbI want to configure the ESB and nRF21540 chips on the NRF21540-DK. In order to compare the signal gain, I used the nRF52832-DK and burned the Bluetooth routine (without any additional individual configuration). At this time, I compared the signal strengthen-USTelligent Community 13Tue, 18 Jun 2024 09:42:33 GMThttps://devzone.nordicsemi.com/thread/489244?ContentTypeID=1Tue, 18 Jun 2024 09:42:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:495badcb-7ce0-4884-ad6d-ff8cf31a34c9Elfving<p>Hello,</p> <p>The FEM gets enabled by simply building a sample for a board with a FEM in its device tree. For how to increase the tx power, <a href="https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/device_guides/fem/fem_nRF21540_optional_properties.html#setting_the_fem_output_power_with_nrf21540">see here</a>.</p> <p>When it comes to how to set tx power with ESB, <a href="https://devzone.nordicsemi.com/f/nordic-q-a/111745/thingy53-esb-and-fem/487102">have a look here</a>&nbsp;at this previous response by a coworker of mine.</p> <p>Regards,</p> <p>Elfving</p><div style="clear:both;"></div>