About nRF52840 RF reception sensitivity issueshttps://devzone.nordicsemi.com/f/nordic-q-a/80105/about-nrf52840-rf-reception-sensitivity-issuesAt 1M rate, test the reception sensitivity of Bluetooth chip, the number of packets lost at -90dBm exceeded 30.8% as specified by Bluetooth Alliance, and this situation occurred in 10 of the 25 chips tested, in the same test environment. At the same timeen-USTelligent Community 13Wed, 29 Sep 2021 19:32:49 GMTRE: About nRF52840 RF reception sensitivity issueshttps://devzone.nordicsemi.com/thread/331793?ContentTypeID=1Wed, 29 Sep 2021 19:32:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bceef135-4abb-4477-817f-76c1c2360a01Kenneth<p>Have you verified using a spectrum analyser that the output power is within specifications on the design?</p> <p>Have you measured the frequency accuracy of the carrier?</p> <p>Are you taking into account loss in connectors and cables when you write -90dBm?</p> <p>Can you measure&nbsp;the packet loss at several attenuation levels? For instance -88, -90, and -92dBm?</p> <p></p><div style="clear:both;"></div>