https://devzone.nordicsemi.com/f/nordic-q-a/103760/ble-scan-interval-and-window-setup-for-best-resultsHi! It&#39;s not very clear in the documentation the best case setup of these variables. My reading of a support ticket from 8 years ago suggests a setup of window == interval will guarantee 100% uptime on rx with 100-300us downtime every interval time toen-USTelligent Community 13Thu, 14 Sep 2023 21:26:02 GMThttps://devzone.nordicsemi.com/thread/446150?ContentTypeID=1Thu, 14 Sep 2023 21:26:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2c82348c-432a-4ba6-b558-5e8ddc744699ovrebekk<p>Hi Grant</p> <p>Approximately how large is the scan window and interval in your test, and what is the advertising interval for the commission beacon?</p> <p>The drawback of a small scan interval is more overhead as you say, but the problem of a long interval is that if there is a conflict between scanning and something else you might get a longer period without any scanning activity.&nbsp;</p> <p>Have you read through the scheduling chapter of the SoftDevice specification, in particular the section named <a href="https://infocenter.nordicsemi.com/topic/sds_s140/SDS/s1xx/multilink_scheduling/suggested_intervals_windows_s132.html?cp=5_7_4_0_14_9">Suggested intervals and windows</a>?&nbsp;</p> <p>Best regards<br />Torbjørn</p><div style="clear:both;"></div>