{"product_id":"em-25-em-43-1-8-30mhz-shortwave-choke-coil-magnetic-ring-shortwave-1-1-current-balun-for-hf-shortwave-radio-the-feeder","title":"EM-25\/ EM-43 1.8-30MHz Shortwave Choke Coil Magnetic Ring Shortwave 1:1 Current Balun For HF Shortwave Radio The Feeder","description":"\u003csection data-tufzen-geo-summary=\"v1\" class=\"tufzen-product-summary\"\u003e\u003ch2\u003eProduct Summary\u003c\/h2\u003e\n\u003cp\u003eEM-25 \/ EM-43 1.8-30MHz Shortwave Choke Coil Magnetic Ring Shortwave 1:1 Current Balun For is a RF wireless product selected for wireless communication, antenna experiments and radio signal workflows. It is suitable for radio users, SDR experimenters and wireless project builders who need practical electronics hardware for reliable project work.\u003c\/p\u003e\n\u003ch3\u003eBest For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ewireless communication, antenna experiments and radio signal workflows\u003c\/li\u003e\n\u003cli\u003eSDR receivers, LoRa modules, antennas and RF test setups\u003c\/li\u003e\n\u003cli\u003eElectronics testing, repair, prototyping and maker workflows\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWho is this product for?\u003c\/strong\u003e It is intended for radio users, SDR experimenters and wireless project builders.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should I check before buying?\u003c\/strong\u003e Review the product options, specifications, included accessories and compatibility details on this page.\u003c\/p\u003e\u003c\/section\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\u003cstrong\u003eFeature:\u003c\/strong\u003e\u003c\/div\u003e\u003c\/div\u003e\u003cp\u003eIndustrial grade anti-interference performance\u003c\/p\u003e\u003cp\u003e-Specially designed for 1.8-30MHz high-frequency radio stations\u003c\/p\u003e\u003cp\u003e-Strongly suppress common mode current and eliminate electromagnetic interference (EMI) from equipment\u003c\/p\u003e\u003cp\u003e-Ensure the purity of communication signals for field operations\/competitions\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e materials, dual specification durable design\u003c\/p\u003e\u003cp\u003e-High permeability imported ferrite magnetic ring (EM43\/EM25 optional)\u003c\/p\u003e\u003cp\u003e-High temperature and saturation resistance, high power without magnetic decay\u003c\/p\u003e\u003cp\u003e-Comparison of heat dissipation:\u003c\/p\u003e\u003cp\u003e▶ EM43 large magnetic ring (Ø 45mm): Increased heat dissipation area by 40%, supporting 150W PEP high power\u003c\/p\u003e\u003cp\u003e▶ EM25 small magnetic ring (Ø 25mm): lightweight and portable, supports 100W PEP\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003ePlug and Play · Full Scene Adaptation\u003c\/p\u003e\u003cp\u003e-M-male (PL-259) to M-female (SO-239) interface\u003c\/p\u003e\u003cp\u003e-Directly connect the radio station and feeder, and install quickly in 3 seconds\u003c\/p\u003e\u003cp\u003e-Applicable scenarios:\u003c\/p\u003e\u003cp\u003eShortwave communication\/antenna grounding optimization\/RF testing\/emergency communication\/amateur radio competition\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTechnical Specifications: \u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e◆ Model: EM43\/EM25 dual specification\u003c\/p\u003e\u003cp\u003eFrequency range: 1.8MHz-30MHz (full HF band coverage)\u003c\/p\u003e\u003cp\u003eMagnetic ring size:\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color: rgb(250, 40, 255);\"\u003e\u003cstrong\u003e-EM43: Diameter 45mm\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color: rgb(250, 40, 255);\"\u003e\u003cstrong\u003e-EM25: Diameter 25mm\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003eInterface type: M male head (PL-259) → M female seat (SO-239)\u003c\/p\u003e\u003cp\u003eCore function: 1:1 current type balun, common mode current suppression\u003c\/p\u003e\u003cp\u003e◆ Power capacity:\u003c\/p\u003e\u003cp\u003e- EM43:150W PEP\u003c\/p\u003e\u003cp\u003e- EM25:100W PEP\u003c\/p\u003e\u003cdiv\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/Se98ef66a9d7444f58ebb0f54ee596da9y.webp?v=1772243055\" alt=\"\" loading=\"lazy\" decoding=\"async\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/S9ca5a1e489754a959c28e3f9efc0262bB.webp?v=1772243056\" alt=\"\" loading=\"lazy\" decoding=\"async\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/S7a89f3b24f3749eb925571d85b5a8597m.webp?v=1772243055\" alt=\"\" loading=\"lazy\" decoding=\"async\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/S2e49231cf240477690947118c12d150fB.webp?v=1772243056\" alt=\"\" loading=\"lazy\" decoding=\"async\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/S15b52774c2dc45e28f30c030e4ad3d2c4.webp?v=1772243055\" alt=\"\" loading=\"lazy\" decoding=\"async\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/S70de017a96c94855addf28717ec34308S.webp?v=1772243056\" alt=\"\" loading=\"lazy\" decoding=\"async\"\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"EM-25","offers":[{"title":"EM25","offer_id":47418302202114,"sku":"EM25","price":16.67,"currency_code":"USD","in_stock":true},{"title":"EM43","offer_id":47418302169346,"sku":"EM43","price":24.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/S7a89f3b24f3749eb925571d85b5a8597m.webp?v=1772243458","url":"https:\/\/proengi.com\/products\/em-25-em-43-1-8-30mhz-shortwave-choke-coil-magnetic-ring-shortwave-1-1-current-balun-for-hf-shortwave-radio-the-feeder","provider":"PROENGI","version":"1.0","type":"link"}