https://devzone.nordicsemi.com/f/nordic-q-a/96353/unknown-power-consumption-from-bluetooth-le-advertisingnRF connect SDK 2.1.2 - nRF52805 Hello, I have an unknown power consumption from bluetooth advertising. I have set an advertising interval of 2 seconds and start the advertising with the function: bt_le_adv_start(ADVERTISING_INTERVAL_2, freshAdvertisingPacketen-USTelligent Community 13Mon, 06 Feb 2023 14:05:35 GMThttps://devzone.nordicsemi.com/thread/408307?ContentTypeID=1Mon, 06 Feb 2023 14:05:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5d09b295-7d3b-4361-91c9-b48e656ff925helsing<p>Hello Jonas,</p> <p>This is likely the LFRC calibration which occurs every eight seconds when using the internal oscillator of the SoC.</p> <p>Here is a <a href="https://devzone.nordicsemi.com/f/nordic-q-a/14214/how-much-current-consumption-when-we-use-internal-32k-rc/54292">DevZone post discussing LFRC vs LFXO</a> .</p> <p>If using the DK, try enabling LFXO to see if it goes away.</p> <p>Would you be able to share the recording from PPK II? We could look closer into the current profile.</p><div style="clear:both;"></div>