{"id":875,"date":"2018-01-16T22:28:09","date_gmt":"2018-01-17T06:28:09","guid":{"rendered":"http:\/\/gw.k6hr.ampr.org:8080\/blog\/?p=875"},"modified":"2019-04-27T16:16:43","modified_gmt":"2019-04-27T23:16:43","slug":"choking-everything","status":"publish","type":"post","link":"http:\/\/k6hr.com\/index.php\/2018\/01\/16\/choking-everything\/","title":{"rendered":"RFI Battle! Choking Everything!"},"content":{"rendered":"<p>Choking everything! I&#8217;m still working through placing all the snap-on ferrite chokes. When complete, virtually every cable will have a proper fitting choke on each end. I plan to be choking everything. This really helps keep things quiet and eliminate RFI in the shack. In my previous setup I added ferrites one by one to eliminate problems, but couldn&#8217;t choke as many cables because I couldn&#8217;t reach half of them! In the rack it&#8217;s easy and I expect great results. The goal is to be RFI free at full RF output. Research showed you can never have too many ferrites. RFI suppression done right.<\/p>\n<figure id=\"attachment_876\" aria-describedby=\"caption-attachment-876\" style=\"width: 1024px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-876 size-full\" src=\"http:\/\/k6hr.com\/wp-content\/uploads\/2018\/01\/DSC00588-Medium.jpg\" alt=\"Labeled the antenna panel\" width=\"1024\" height=\"768\" \/><figcaption id=\"caption-attachment-876\" class=\"wp-caption-text\">Labeled the antenna panel<\/figcaption><\/figure>\n<figure id=\"attachment_878\" aria-describedby=\"caption-attachment-878\" style=\"width: 1024px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-878 size-full\" src=\"http:\/\/k6hr.com\/wp-content\/uploads\/2018\/01\/DSC00590-Medium.jpg\" alt=\"Choking everything\" width=\"1024\" height=\"768\" \/><figcaption id=\"caption-attachment-878\" class=\"wp-caption-text\">All antenna leads have ferrite chokes on both ends<\/figcaption><\/figure>\n<figure id=\"attachment_879\" aria-describedby=\"caption-attachment-879\" style=\"width: 1024px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-879 size-full\" src=\"http:\/\/k6hr.com\/wp-content\/uploads\/2018\/01\/DSC00591-Medium.jpg\" alt=\"choking everything on at-auto\" width=\"1024\" height=\"768\" \/><figcaption id=\"caption-attachment-879\" class=\"wp-caption-text\">The business end of the AT-AUTO tuner<\/figcaption><\/figure>\n<figure id=\"attachment_880\" aria-describedby=\"caption-attachment-880\" style=\"width: 1024px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-880 size-full\" src=\"http:\/\/k6hr.com\/wp-content\/uploads\/2018\/01\/DSC00592-Medium.jpg\" alt=\"RFI suppression everywhere\" width=\"1024\" height=\"768\" \/><figcaption id=\"caption-attachment-880\" class=\"wp-caption-text\">RFI suppression everywhere<\/figcaption><\/figure>\n<figure id=\"attachment_882\" aria-describedby=\"caption-attachment-882\" style=\"width: 1024px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-882 size-full\" src=\"http:\/\/k6hr.com\/wp-content\/uploads\/2018\/01\/DSC00594-Medium.jpg\" alt=\"The W6LVP Loop TX Switch will have a dummy load connected\" width=\"1024\" height=\"768\" \/><figcaption id=\"caption-attachment-882\" class=\"wp-caption-text\">The W6LVP Loop TX Switch will have a dummy load connected<\/figcaption><\/figure>\n<p>The TX relay for the W6LVP Magnetic Loop Antenna will switch over to an <a href=\"https:\/\/www.mfjenterprises.com\/Product.php?productid=MFJ-260C\" target=\"_blank\" rel=\"noopener noreferrer\">MFJ-260C Dummy Load<\/a> in the event the TX is engaged on &#8220;Radio #2&#8221; when the SPE 1K-FA is powered off. Better to be safe than sorry, even if only at tuning level output.<\/p>\n<figure id=\"attachment_881\" aria-describedby=\"caption-attachment-881\" style=\"width: 1024px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-881 size-full\" src=\"http:\/\/k6hr.com\/wp-content\/uploads\/2018\/01\/DSC00593-Medium.jpg\" alt=\"Both sides of the Array Solution Front End Protector are choked off also\" width=\"1024\" height=\"768\" \/><figcaption id=\"caption-attachment-881\" class=\"wp-caption-text\">Both sides of the Array Solution Front End Protector are choked off also<\/figcaption><\/figure>\n<p>Between the ferrite chokes and the Low Impedance Single Point Ground System the rack should perform quietly and be 100% RFI free. Of course there&#8217;s always the &#8220;Luck Of The Irish&#8221; so I won&#8217;t count my chickens just yet. High power testing this weekend!<\/p>\n<p><a href=\"http:\/\/k6hr.com\">Back To The Front<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Choking everything! I&#8217;m still working through placing all the snap-on ferrite chokes. When complete, virtually every cable will have a proper fitting choke on each end. I plan to be choking everything. This really helps keep things quiet and eliminate RFI in the shack. In my previous setup I added ferrites one by one to &hellip; <a href=\"http:\/\/k6hr.com\/index.php\/2018\/01\/16\/choking-everything\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;RFI Battle! Choking Everything!&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","footnotes":""},"categories":[12],"tags":[81,85,82,83,84],"class_list":["post-875","post","type-post","status-publish","format-standard","hentry","category-whats-new","tag-ferrite-choke","tag-mfj-260c","tag-mix-31","tag-rfi","tag-rfi-suppression"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>RFI Battle! Choking Everything! - K6HR SDR Server 2026<\/title>\n<meta name=\"description\" content=\"K6HR is choking everything! Today we install Mix 31 snap-on ferrites to both ends of every cable. 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