https://devzone.nordicsemi.com/f/nordic-q-a/115822/mpsl-synchronizationHello, This is a theoretical question rather than a problem: Let&#39;s say I have 2 devices that need to communicate over standard BLE profile and every so often needs to send raw radio packet (RRP). For BLE the Rx&lt;-&gt;Tx are synchronized via BLE&#39;sen-USTelligent Community 13Fri, 25 Oct 2024 14:09:46 GMThttps://devzone.nordicsemi.com/thread/507973?ContentTypeID=1Fri, 25 Oct 2024 14:09:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:76883be6-e856-436d-ba2c-d59e820abc72Amanda Hsieh<p>Hi,</p> [quote user=""]Does the MPSL library takes care of timing so both devices get radio access&nbsp;(MPSL_TIMESLOT_SIGNAL_START) simultaneously?[/quote] <p><span><span dir="ltr">No. The device clocks drift apart, and so do the timeslots. It&#39;s up to the user to decide how to implement their custom radio protocol.</span></span></p> <p><span><span dir="ltr"></span></span></p> <p><span><span dir="ltr">Regards,<br />Amanda H.</span></span></p><div style="clear:both;"></div>