https://devzone.nordicsemi.com/f/nordic-q-a/70939/synchronize-advertisig-with-connection-intervalsI am looking for a way to start advertising as soon as connection event. Our use-case is: we have 1 peripheral that&#39;s connected on CODED PHY to a central with a relatively large connection interval (&gt; 1s). While it is in connected state, the peripheralen-USTelligent Community 13Thu, 04 Feb 2021 20:18:41 GMThttps://devzone.nordicsemi.com/thread/292992?ContentTypeID=1Thu, 04 Feb 2021 20:18:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:79feb3c7-4f09-445f-8e0e-b896cc2452c9run_ar<p>Hi,</p> <p>Unfortunately, Advertising cannot be synchronized with a connection as advertisement requires a random delay to comply with the spec. You can see the details on scheduling here: <span><a title="Advertiser timing" href="https://infocenter.nordicsemi.com/topic/sds_s140/SDS/s1xx/multilink_scheduling/advertiser_timing.html?cp=4_7_4_0_14_4">Advertiser timing</a></span></p> <p>Not sure why having this in between two connection events will kill you powert budget? radio will have to ramp up and send regardless. I guess there is a small penalty from stopping and starting the High frequency crystal oscillator. But as mentioned the random delay is required so I am afraid there is not any options in this case.</p><div style="clear:both;"></div>