https://devzone.nordicsemi.com/f/nordic-q-a/73785/about-ble-air-transmission-timeproject ：Zephyr board ：52840DK Description ： we want make 52840Dk advertising only once ，at 37 ，38. 39 channel，so we do like blew （1）we Start advertising by bt_le_adv_start (2) stop advertising by bt_le_adv_stop result ： we can not finden-USTelligent Community 13Tue, 13 Apr 2021 12:22:59 GMThttps://devzone.nordicsemi.com/thread/304526?ContentTypeID=1Tue, 13 Apr 2021 12:22:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ec7aa18b-8dd3-4a23-bb9c-5d20dee85702Marjeris Romero<p>Happy to help!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/304437?ContentTypeID=1Tue, 13 Apr 2021 08:38:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6746e903-dc13-4f25-89dc-996ee901235ehcefk<p>it&lsquo;s&nbsp; very useful for me，thanks。</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/304431?ContentTypeID=1Tue, 13 Apr 2021 08:24:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cb6b00c6-40e2-4c11-9c33-063a2c75436bMarjeris Romero<p>Hi,</p> <p>Sorry for the late reply. Can I ask what is the end goal for advertising only once on each advertising channel?</p> <p>In Softdevice controller has a feature called Radio notifications which you can use to notify the application when the radio is in use, perhaps it&#39;s something you can use for your application so you are sure that the advertising packets are sent before stopping advertising: <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrfxlib/mpsl/doc/radio_notification.html?highlight=radio%20notifications">https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrfxlib/mpsl/doc/radio_notification.html?highlight=radio%20notifications</a></p><div style="clear:both;"></div>