https://devzone.nordicsemi.com/f/nordic-q-a/129010/range-of-coded-phy-s8-versus-1m-in-advertisingI just programmed 2 Boards. One Peripheral advertising with 1m Phy and other peripheral with s8 codded phy. Using NRF connect app and wire sharc I made sure that I really achieved the coded phy as well. Now the question: Inside my building theen-USTelligent Community 13Mon, 24 Aug 2026 11:56:02 GMThttps://devzone.nordicsemi.com/thread/570529?ContentTypeID=1Mon, 24 Aug 2026 11:56:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4313c5e9-9e73-491b-af78-4bb48f0cf434Hung Bui<p>Hi Klaus,&nbsp;</p> <p>It depends on many factors. Could you please verify that you actually used CODED PHY ? On the nRF Connect App on the phone, it should say which Primay PHY and Secondary PHY was used. Please make sure both PHY are LE Coded.&nbsp;<br />Which environment did you test with, what&#39;s the result you had ?&nbsp;<br /><br />Have you tried to test it outdoor? One of the challenge with CODED PHY is&nbsp;the high interference because of longer airtime and multipath reflections.&nbsp;<br />How much data do you put in the advertising packet ? A long advertising packet with 4x the length due to Coded PHY have higher chance of interference compare to a small 1Mbps PHY packet.<br /><br /></p><div style="clear:both;"></div>