/challenges-projects/project14/b/make-a-connection/posts/em-signal-detection-and-transmissionA sea of electromagnetic noise surrounds humanity, coming from countless electrical devices. Have you ever been curious about that noise? For my competition entry, I&rsquo;ll show you how to build a simple EM detector so that you can listen...en-USTelligent Community 12https://community.element14.com/challenges-projects/project14/b/make-a-connection/posts/em-signal-detection-and-transmissionTue, 15 Sep 2026 21:07:41 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:25433f29-36fc-4496-b90e-1ea9b3fef1d6beacon_dave1<p>I recall a long time ago an Elektor project referred to this as &#39;E-smog&#39;, which I thought was quite&nbsp;appropriate name for it.</p> <p>They had a more basic detector which they called TAPIR - (<span>Totally Archaic but Practical Interceptor of Radiation)</span></p> <p><a href="https://www.youtube.com/watch?v=M-q37LKKzrI" rel="noopener noreferrer nofollow" target="_blank" data-e14adj="t">https://www.youtube.com/watch?v=M-q37LKKzrI</a></p><img src="https://community.element14.com/aggbug?PostID=30175&AppID=492&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/challenges-projects/project14/b/make-a-connection/posts/em-signal-detection-and-transmissionFri, 11 Sep 2026 10:43:19 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:25433f29-36fc-4496-b90e-1ea9b3fef1d6Qbit0<p>Very interesting project, I will also try this out.</p><img src="https://community.element14.com/aggbug?PostID=30175&AppID=492&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/challenges-projects/project14/b/make-a-connection/posts/em-signal-detection-and-transmissionFri, 11 Sep 2026 01:07:26 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:25433f29-36fc-4496-b90e-1ea9b3fef1d6DAB1<p>Very cool.</p> <p>I have spent decades trying to eliminate EM for avionics systems.</p> <p>If you want to have some additional fun, you can add some ferrite beads to the circuit and observe their effect.</p><img src="https://community.element14.com/aggbug?PostID=30175&AppID=492&AppType=Weblog&ContentType=0" width="1" height="1">