<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div dir="ltr"></div><div dir="ltr">Recently I found the following PDFs dealing with using ferrites and filtering for noise suppression in ham radio. If you enjoyed W1HIS’s presentation last year at BARS then you will find these of interest. The level of knowledge and detail is amazing. Read the first linked PDF for the best overview. </div><div dir="ltr"><br></div><div dir="ltr">K9YC has done a great service by working on these!</div><div dir="ltr"><br></div><div dir="ltr">Andy</div><div dir="ltr">KA1GTT</div><div dir="ltr"><br></div><div dir="ltr">
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<p class="MsoNormal"><a href="http://k9yc.com/RFI-Ham.pdf">http://k9yc.com/RFI-Ham.pdf</a><o:p></o:p></p>
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<p class="MsoNormal"><a href="http://k9yc.com/2018Cookbook.pdf">http://k9yc.com/2018Cookbook.pdf</a><o:p></o:p></p>
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<p class="MsoNormal"><a href="http://k9yc.com/RXChokesTransformers.pdf">http://k9yc.com/RXChokesTransformers.pdf</a><o:p></o:p></p>
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