https://devzone.nordicsemi.com/f/nordic-q-a/111800/strange-spurs-when-sending-constant-carrierI am having some issues with spurs when looking at the RF signal with a spectrum analyzer. The problem disappears when using __WFE() at the same time as sending constant carrier. As you can see it is also affecting the overall shape of the signal. en-USTelligent Community 13Wed, 05 Jun 2024 09:09:52 GMThttps://devzone.nordicsemi.com/thread/487453?ContentTypeID=1Wed, 05 Jun 2024 09:09:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8cf73ac0-1c66-4a23-b4f2-c02aac0abcf7Simonr<p>Hi</p> <p>Please try testing with 100kHz bandwidth instead, as CPU and flash activity will generate some noise, so this could be expected noise from those.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>