Uploaded May 2026 | Updated September 2026, 2 weeks ago
In this element14 presents episode, Clem builds an automated CNC style EMI heatmapping scanner to remove guesswork from near field probing during pre compliance testing. Using an Arduino Uno with GRBL, professional near field probes, and a low cost RTL SDR, the system scans a PCB in a controlled grid and turns raw measurements into clear EMI heatmaps. Along the way, Clem highlights real engineering challenges, including firmware choices, SDR software limitations, and the critical importance of lowering the noise floor through proper shielding, showing how automation and good measurement practice work together, and you can find the supporting files on the element14 Community: bit.ly/4d5TYty
#emidebugging #emctesting #hardwareengineering
[00:00]-Intro
[04:01]-Buy it or build it?
[05:09]-The Theory
[09:59]-The Code
[16:47]-Cut the Noise
[24:53]-Making some measurements
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Engage with the element14 presents team on the element14 Community - suggest builds, find project files and behind the scenes video: bit.ly/3tmdewv
Visit the element14 Community for more great activities and free hardware:
Tech spotlights: bit.ly/3qPrDhM
RoadTest and Reviews: bit.ly/3pV5Bux
Project14: bit.ly/31wbnJY
In this element14 presents episode, Clem builds an automated CNC style EMI heatmapping scanner to remove guesswork from near field probing during pre compliance testing. Using an Arduino Uno with GRBL, professional near field probes, and a low cost RTL SDR, the system scans a PCB in a controlled grid and turns raw measurements into clear EMI heatmaps. Along the way, Clem highlights real engineering challenges, including firmware choices, SDR software limitations, and the critical importance of lowering the noise floor through proper shielding, showing how automation and good measurement practice work together, and you can find the supporting files on the element14 Community: bit.ly/4d5TYty
#emidebugging #emctesting #hardwareengineering
[00:00]-Intro
[04:01]-Buy it or build it?
[05:09]-The Theory
[09:59]-The Code
[16:47]-Cut the Noise
[24:53]-Making some measurements
=================================================================================
Engage with the element14 presents team on the element14 Community - suggest builds, find project files and behind the scenes video: bit.ly/3tmdewv
Visit the element14 Community for more great activities and free hardware:
Tech spotlights: bit.ly/3qPrDhM
RoadTest and Reviews: bit.ly/3pV5Bux
Project14: bit.ly/31wbnJY
