https://devzone.nordicsemi.com/f/nordic-q-a/107194/txpower-optionsHi We have nRF52840 + FEM in our design. Output power level is mainly controlled by the nRF52840 TX power setting which drives the FEM. However, the txpower options is a list of somewhat sparse txpower options ( -40dBm, -20dBm, -16dBm, -12dBm, -8dBmen-USTelligent Community 13Tue, 28 May 2024 07:07:20 GMThttps://devzone.nordicsemi.com/thread/486089?ContentTypeID=1Tue, 28 May 2024 07:07:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0e31eb87-8aba-43d0-b638-48424da2c0b0rikhard<p>I referred to output power accuracy with FEM where +-1dB _nominal_ accuracy is required / preferred.&nbsp;</p> <p>The gain of the FEM is also a function of the input RF power and therefore options for the output power are limited by the set of the TXPOWER options available. I encourage adding a tunable attenuator in between FEM and nRF to have more accurate output power options. E.g. with gain ~20 dB at ~0 dBm input power, any TXPOWER above 0 dBm are not really usable and the TXPOWER options below 0 dBm are scarce --&gt; output power options are scarce.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/463122?ContentTypeID=1Mon, 08 Jan 2024 11:56:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ca8746e7-40e5-42cd-8a20-7148384d71a1Kenneth<p>Hello,</p> <p>The configurable output power are those stated yes, I would also like to mention that the accuracy of each level is up to +-4dB in worst case (over temperature, production variation and channel in the 2.4GHz band). May I ask why you need such fine resolution and accuracy over 40dBm?</p> <p>Kenneth</p><div style="clear:both;"></div>