https://devzone.nordicsemi.com/f/nordic-q-a/83635/question-about-iq-valuesI use my customized antenna board (5 antennas on it) with the following IQ problem: DF3 CTE[0]: samples count 45, cte type AOA, channel index 13, slot durations: 2 [us], packet status CRC OK, RSSI -1270 sample[0] I= -10 Q= 5 sample[1] I= 9 Q= -6 sampleen-USTelligent Community 13Tue, 25 Jan 2022 04:20:09 GMThttps://devzone.nordicsemi.com/thread/349403?ContentTypeID=1Tue, 25 Jan 2022 04:20:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:47c960aa-f082-4aef-87fe-54a767b86381upupsky<p><img src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/communityserver-discussions-components-files/4/pastedimage1643084146969v1.png" alt=" " /></p> <p>the column of every antenna, phase should permanent, not change like this.</p> <p>can you sample some data, use 3 antennas(1-receive pdu, 2-receive cte switch)</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/347823?ContentTypeID=1Fri, 14 Jan 2022 16:28:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cd42ef7b-899a-42f4-afa0-2b7bd6b49457SwRa<p>Hi,</p> <p>Could you tell me based on which example have you implemented your project.? Is this the AOA connectionless beacon.? Also,&nbsp;to get an accurate location estimation, 5 antennas might be a little less. It is recommended to use at least 2x3 antenna array to get an okay resolution but it is always recommended to use more.&nbsp; Also, RSSI could vary greatly depending on a lot of external factors. If there is a lot of activity on the 2.4 GHz band, it will cause interferences between the devices.</p> <p>Kind Regards,</p> <p>Swathy</p><div style="clear:both;"></div>