https://devzone.nordicsemi.com/f/nordic-q-a/102376/extended-advertising-on-coded-phy-questionsHi, I&#39;m trying to understand the periphral_hr_coded sample ( Bluetooth: Peripheral Heart Rate Monitor with Coded PHY — nRF Connect SDK 2.4.99 documentation (nordicsemi.com) ) and had a couple of questions. Firstly, in this function&#39;s block commenten-USTelligent Community 13Mon, 31 Jul 2023 18:50:38 GMThttps://devzone.nordicsemi.com/thread/439122?ContentTypeID=1Mon, 31 Jul 2023 18:50:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7b40c6b8-7988-42eb-bf65-c9e13b11e493Michael Zeng<p>I see. Thank you for the clarification!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/439014?ContentTypeID=1Mon, 31 Jul 2023 12:24:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1bbd2eff-bcbe-45d9-9273-a2e19a6c816aHung Bui<p>Hi Michael,&nbsp;</p> <p>When you configure this in your advertising param, the advertising set will use extended advertising:&nbsp;</p> <p><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1690805608200v1.png" alt=" " /></p> <p>When you do extended advertising, the payload is always transmitted in the auxiliary packet (AUX_ADV_IND) on the data channel(s). The primary advertising packets (ADV_EXT_IND) will only contain the Aux Ptr to point to the auxiliary packet. Please find the detail in the Bluetooth spec.<br /><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1690806245826v2.png" alt=" " /><br /><br /></p><div style="clear:both;"></div>