https://devzone.nordicsemi.com/f/nordic-q-a/42222/advertisement-interval-always-with-delayHi Folks, As per bluetooth spececification(4.4.2.2.1) advertising interval has addition of advDelay in range of 0-10ms. In my example, 1. device advertise beacon (sd_ble_gap_adv_start()) 2. stops advertising function call(15ms) before next advertisingen-USTelligent Community 13Thu, 03 Mar 2022 11:10:02 GMThttps://devzone.nordicsemi.com/thread/356001?ContentTypeID=1Thu, 03 Mar 2022 11:10:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5b3aa3ed-1680-4fbf-8d7e-6c9e400c6422Ridhi<p>how to add a custom delay before each advertising set&nbsp;start</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/164434?ContentTypeID=1Tue, 08 Jan 2019 08:18:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:362f7ded-8a6a-4f7d-95f6-3337f33cc3bbSusheel Nuguru[quote user=""]Q) Effectively, i am not using advertising interval mechanism, Is softdevice add random delay ?[/quote] <p>&nbsp;Yes, The link layer in the softdevice adds the random delay of 0-10ms to your requested advertising interval. The application has no control on this random delay.</p><div style="clear:both;"></div>