Posted by sky_watch on
URL: https://www.es-forum.com/Ferrite-Chokes-and-Noise-tp4027907.html

I've been keeping a journal about my EHS since I first learned about RF and EMFs and recently asked about an article I had read in a newsletter I receive. I emailed the editor of the newsletter, sharing an excerpt from my journal to help clarify a question I had asked with regard to one of the articles in the newsletter.

Here's the response (in part): "Most wired keyboards are fairly safe but I find that a mouse will cause hand and wrist problems. You can place a ferrite choke on the mouse wire and it will stop most frequencies from getting to your hand. There are various sizes of chokes that can be placed on wiring.

There was a link to ferrite chokes at Amazon.com. So I went to Amazon and was reading about them because I'd not heard of them before. Some of the remarks were talking about "noise" and the wires.

What do they mean by "noise"?