{"product_id":"common-mode-noise-reduction-kit-for-amateur-radio-operators","title":"Common Mode Noise Reduction Kit: For Amateur Radio Operators","description":"\u003c!--\n  RF.GURU \/ FAIR-RITE PRODUCT DESCRIPTION\n\n  Paste this complete block into the Shopify product description in HTML mode.\n  The Shopify theme already supplies the title, image gallery, price and buy controls,\n  so this block intentionally begins with supporting product information.\n\n  All CSS is scoped to .rfg-fr-description and will not restyle the rest of the theme.\n--\u003e\n\n\u003cstyle\u003e\n  .rfg-fr-description {\n    --rfg-ink: #101723;\n    --rfg-navy: #071d39;\n    --rfg-blue: #176ec4;\n    --rfg-orange: #ff6b2c;\n    --rfg-paper: #f4f3ef;\n    --rfg-soft: #e9eef3;\n    --rfg-line: #d8dfe5;\n    --rfg-muted: #66717d;\n    width: 100%;\n    margin: 32px 0 0;\n    color: var(--rfg-ink);\n    font-family: Arial, Helvetica, sans-serif;\n    font-size: 15px;\n    line-height: 1.6;\n  }\n\n  .rfg-fr-description,\n  .rfg-fr-description * { box-sizing: border-box; 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}\n\n  .rfg-fr-faq details {\n    border: 1px solid var(--rfg-line);\n    border-bottom: 0;\n    background: #fff;\n  }\n\n  .rfg-fr-faq details:last-child { border-bottom: 1px solid var(--rfg-line); }\n\n  .rfg-fr-faq summary {\n    position: relative;\n    padding: 17px 42px 17px 18px;\n    color: var(--rfg-navy);\n    cursor: pointer;\n    font-size: 13px;\n    font-weight: 700;\n    line-height: 1.4;\n    list-style: none;\n  }\n\n  .rfg-fr-faq summary::-webkit-details-marker { display: none; }\n\n  .rfg-fr-faq summary:after {\n    content: \"+\";\n    position: absolute;\n    top: 50%;\n    right: 18px;\n    color: var(--rfg-orange);\n    font-size: 20px;\n    font-weight: 400;\n    transform: translateY(-50%);\n  }\n\n  .rfg-fr-faq details[open] summary:after { content: \"−\"; }\n\n  .rfg-fr-faq details p {\n    margin: -2px 18px 18px;\n    color: #596570;\n    font-size: 12px;\n    line-height: 1.65;\n  }\n\n  .rfg-fr-source {\n    margin-top: 18px;\n    padding: 16px 18px;\n    display: flex;\n    align-items: center;\n    justify-content: space-between;\n    gap: 14px;\n    border-left: 3px solid var(--rfg-orange);\n    background: var(--rfg-soft);\n  }\n\n  .rfg-fr-source p {\n    margin: 0;\n    color: #68737d;\n    font-size: 10px;\n  }\n\n  .rfg-fr-source a {\n    flex: 0 0 auto;\n    color: var(--rfg-blue);\n    font-size: 10px;\n    font-weight: 700;\n    text-decoration: none;\n  }\n\n  .rfg-fr-source a:hover { text-decoration: underline; }\n\n  @media (max-width: 480px) {\n    .rfg-fr-description { margin-top: 24px; }\n    .rfg-fr-intro,\n    .rfg-fr-panel { padding: 21px 18px; }\n    .rfg-fr-part { grid-template-columns: 34px 1fr; padding: 11px 0; }\n    .rfg-fr-part code { grid-column: 2; }\n    .rfg-fr-specs \u003e div { grid-template-columns: 1fr; gap: 5px; padding: 13px 0; }\n    .rfg-fr-source { align-items: flex-start; flex-direction: column; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"rfg-fr-description\"\u003e\n  \u003csection class=\"rfg-fr-intro\"\u003e\n    \u003cp class=\"rfg-fr-kicker\"\u003eFair-Rite · Part 0199000063\u003c\/p\u003e\n    \u003ch2\u003eOne kit for the common noise paths around your station.\u003c\/h2\u003e\n    \u003cp\u003e\n      A practical assortment of genuine Fair-Rite Snap-It® and toroidal cores\n      for locating and suppressing common-mode RF on feedlines, power leads,\n      audio, USB, control cables and other station wiring.\n    \u003c\/p\u003e\n\n    \u003cdiv class=\"rfg-fr-badges\" aria-label=\"Product highlights\"\u003e\n      \u003cspan\u003e1 MHz–500 MHz\u003c\/span\u003e\n      \u003cspan\u003e31 Material®\u003c\/span\u003e\n      \u003cspan\u003e8 components\u003c\/span\u003e\n      \u003cspan\u003eReusable case\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"rfg-fr-panel rfg-fr-dark\"\u003e\n    \u003cp class=\"rfg-fr-kicker\"\u003eOne case. Multiple noise paths.\u003c\/p\u003e\n    \u003ch2\u003eTest the real installation—not just the theory.\u003c\/h2\u003e\n    \u003cp\u003e\n      Common-mode current can ride the outside of coax, couple into control\n      wiring, or leave through power and data leads. Five core formats make it\n      easier to compare fit and placement before choosing a permanent layout.\n    \u003c\/p\u003e\n\n    \u003cdiv class=\"rfg-fr-use-list\"\u003e\n      \u003cdiv class=\"rfg-fr-use\"\u003e\n        \u003cspan\u003e01\u003c\/span\u003e\n        \u003cdiv\u003e\n\u003ch3\u003eFeedlines\u003c\/h3\u003e\n\u003cp\u003eTest choke placement and reduce unwanted current on the outside of coax.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"rfg-fr-use\"\u003e\n        \u003cspan\u003e02\u003c\/span\u003e\n        \u003cdiv\u003e\n\u003ch3\u003eStation wiring\u003c\/h3\u003e\n\u003cp\u003eClamp around power, audio, USB and control cables that may carry RF into equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"rfg-fr-use\"\u003e\n        \u003cspan\u003e03\u003c\/span\u003e\n        \u003cdiv\u003e\n\u003ch3\u003eField diagnostics\u003c\/h3\u003e\n\u003cp\u003eCompare sizes and locations without committing to a single core format.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"rfg-fr-range\"\u003e\n      \u003cdiv class=\"rfg-fr-range-head\"\u003e\n\u003cspan\u003eSuggested suppression range\u003c\/span\u003e\u003cstrong\u003e1–500 MHz\u003c\/strong\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"rfg-fr-track\" aria-label=\"Suggested suppression range from 1 to 500 megahertz\"\u003e\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"rfg-fr-panel\"\u003e\n    \u003cp class=\"rfg-fr-kicker\"\u003eInside the fitted case\u003c\/p\u003e\n    \u003ch2\u003eEight components in five useful formats.\u003c\/h2\u003e\n\n    \u003cdiv class=\"rfg-fr-part-list\" role=\"table\" aria-label=\"Kit contents\"\u003e\n      \u003ca class=\"rfg-fr-part\" role=\"row\" href=\"https:\/\/shop.rf.guru\/products\/ft240-31-ferrite-core-material-31\"\u003e\u003cspan role=\"cell\"\u003e×1\u003c\/span\u003e\u003cdiv role=\"cell\"\u003e\n\u003cstrong\u003e31 round cable core\u003c\/strong\u003e\u003csmall\u003e61 × 35.55 × 12.7 mm\u003c\/small\u003e\n\u003c\/div\u003e\n\u003ccode role=\"cell\"\u003e2631803802\u003c\/code\u003e\u003c\/a\u003e\n      \u003ca class=\"rfg-fr-part\" role=\"row\" href=\"https:\/\/shop.rf.guru\/products\/0431184751\"\u003e\u003cspan role=\"cell\"\u003e×2\u003c\/span\u003e\u003cdiv role=\"cell\"\u003e\n\u003cstrong\u003e31 oval Snap-It® assembly\u003c\/strong\u003e\u003csmall\u003e19.2 mm minimum opening\u003c\/small\u003e\n\u003c\/div\u003e\n\u003ccode role=\"cell\"\u003e0431184751\u003c\/code\u003e\u003c\/a\u003e\n      \u003ca class=\"rfg-fr-part\" role=\"row\" href=\"https:\/\/shop.rf.guru\/products\/0431164281\"\u003e\u003cspan role=\"cell\"\u003e×2\u003c\/span\u003e\u003cdiv role=\"cell\"\u003e\n\u003cstrong\u003e31 round Snap-It® assembly\u003c\/strong\u003e\u003csmall\u003e6.3 mm maximum cable diameter\u003c\/small\u003e\n\u003c\/div\u003e\n\u003ccode role=\"cell\"\u003e0431164281\u003c\/code\u003e\u003c\/a\u003e\n      \u003ca class=\"rfg-fr-part\" role=\"row\" href=\"https:\/\/shop.rf.guru\/products\/0431164181\"\u003e\u003cspan role=\"cell\"\u003e×2\u003c\/span\u003e\u003cdiv role=\"cell\"\u003e\n\u003cstrong\u003e31 round Snap-It® assembly\u003c\/strong\u003e\u003csmall\u003e12.7 mm maximum cable diameter\u003c\/small\u003e\n\u003c\/div\u003e\n\u003ccode role=\"cell\"\u003e0431164181\u003c\/code\u003e\u003c\/a\u003e\n      \u003ca class=\"rfg-fr-part\" role=\"row\" href=\"https:\/\/shop.rf.guru\/products\/0431176451\"\u003e\u003cspan role=\"cell\"\u003e×1\u003c\/span\u003e\u003cdiv role=\"cell\"\u003e\n\u003cstrong\u003e31 round Snap-It® assembly\u003c\/strong\u003e\u003csmall\u003e18 mm maximum cable diameter\u003c\/small\u003e\n\u003c\/div\u003e\n\u003ccode role=\"cell\"\u003e0431176451\u003c\/code\u003e\u003c\/a\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"rfg-fr-panel\"\u003e\n    \u003cp class=\"rfg-fr-kicker\"\u003eTechnical overview\u003c\/p\u003e\n    \u003ch2\u003eSpecifications\u003c\/h2\u003e\n\n    \u003cdl class=\"rfg-fr-specs\"\u003e\n      \u003cdiv\u003e\n\u003cdt\u003eManufacturer\u003c\/dt\u003e\n\u003cdd\u003eFair-Rite Products Corp.\u003c\/dd\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cdt\u003eKit part number\u003c\/dt\u003e\n\u003cdd\u003e0199000063\u003c\/dd\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cdt\u003eMaterial\u003c\/dt\u003e\n\u003cdd\u003e31 Material® MnZn ferrite\u003c\/dd\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cdt\u003eSuggested range\u003c\/dt\u003e\n\u003cdd\u003e1 MHz to 500 MHz\u003c\/dd\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cdt\u003eContents\u003c\/dt\u003e\n\u003cdd\u003e8 pieces across 5 part numbers\u003c\/dd\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cdt\u003eCore formats\u003c\/dt\u003e\n\u003cdd\u003eToroidal, oval Snap-It®, round Snap-It®\u003c\/dd\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003e\n\u003cdt\u003ePrimary use\u003c\/dt\u003e\n\u003cdd\u003eCommon-mode conducted EMI suppression\u003c\/dd\u003e\n\u003c\/div\u003e\n    \u003c\/dl\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"rfg-fr-faq\" aria-label=\"Frequently asked questions\"\u003e\n    \u003cdetails open\u003e\n      \u003csummary\u003eIs this a finished filter?\u003c\/summary\u003e\n      \u003cp\u003eNo. It is an assortment for testing ferrite size, placement and cable fit. Results depend on frequency, cable geometry, turns and the current path in your installation.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eWhy 31 Material®?\u003c\/summary\u003e\n      \u003cp\u003eFair-Rite specifies 31 Material® for EMI suppression from as low as 1 MHz up to 500 MHz, making it a versatile choice for common-mode troubleshooting.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eCan the Snap-It® cores be repositioned?\u003c\/summary\u003e\n      \u003cp\u003eYes. The hinged assemblies can be fitted without cutting or disconnecting the cable, provided the chosen size closes correctly.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eIs the organizer case included?\u003c\/summary\u003e\n      \u003cp\u003eYes. The complete assortment is supplied in the reusable fitted case shown in the product gallery.\u003c\/p\u003e\n    \u003c\/details\u003e\n  \u003c\/section\u003e\n\n  \u003cdiv class=\"rfg-fr-source\"\u003e\n    \u003cp\u003eSpecifications are based on Fair-Rite manufacturer data.\u003c\/p\u003e\n    \u003ca href=\"https:\/\/fair-rite.com\/kits\/common-mode-noise-reduction-kit-for-amateur-radio-operators\/\" target=\"_blank\" rel=\"noopener\"\u003eManufacturer reference ↗\u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n","brand":"RF Guru","offers":[{"title":"Default Title","offer_id":55116456231254,"sku":"0199000063","price":69.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/4402\/4764\/files\/fair-rite-case-open.webp?v=1787858219","url":"https:\/\/shop.rf.guru\/products\/common-mode-noise-reduction-kit-for-amateur-radio-operators","provider":"RF Guru","version":"1.0","type":"link"}