https://devzone.nordicsemi.com/f/nordic-q-a/123058/signal-leakage-issue-of-nrf5340In receive mode, at which frequency points does the nRF5340 have signal leakage? Is it the same as shown in the image for the nRF51?en-USTelligent Community 13Tue, 22 Jul 2025 13:00:27 GMThttps://devzone.nordicsemi.com/thread/543196?ContentTypeID=1Tue, 22 Jul 2025 13:00:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:beaf64b2-2d1b-4567-a5e0-bbf37ab66797Priyanka<p>Hi,</p> <p>On the nRF52 and later series radios, there&#39;s a low side LO at fRX - 2 MHz in 2 Mbps mode and fRX - 1 MHz in 1 Mbps mode. This can be seen on the antenna connector but at a very low level, ~-80 dBm. There&#39;s a 2nd harmonic of this that will have a higher level bit still at ~-60 dBm. At approx 2*fRX. This is where you need to check the level in RX mode.</p> <p>-Priyanka</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/543115?ContentTypeID=1Tue, 22 Jul 2025 08:13:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:55b767a8-b66a-4c2f-b4d4-93b2481301abPriyanka<p>Hi,</p> <p>I am verifying this internally and will get back to you as soon as I have the answer.</p> <p>Regards,</p> <p>Priyanka</p><div style="clear:both;"></div>