Tool measures power-line EMI
Kenneth Wyatt KX7KW writes for EDN about a power line EMI adapter that can be used with spectrum analyzers or oscilloscopes to evaluate conducted power line EMI the increasing problem of RF noise on power lines

Ever since we’ve switched from incandescent to LED lighting and from linear to switch-mode power supplies, EMI on power lines has started to become an issue, especially for those of us who still enjoy AM broadcast radio and amateur radio in 0.54 to 30 MHz.

Add defective power utility transmission line arcing and corona, and many amateur radio enthusiasts and military operators simply can’t receive national and international stations with the resulting hash on their receivers.

Read the full EDN article at
https://www.edn.com/review-tool-measure ... -line-emi/