--- product_id: 556878720 title: "Femei 1-50MHz 500Watt HF Balun DIY Waterproof 1:1 Voltage Balun with UHF Female (SO-239) Connector" brand: "fumei" price: "€ 70.46" currency: EUR in_stock: true category: "Fumei" url: https://www.desertcart.hr/products/556878720-femei-1-50mhz-500watt-hf-balun-diy-waterproof-1-1 store_origin: HR region: Croatia --- # 500W max power handling 1-50 MHz wide frequency range SO-239 UHF female connector Femei 1-50MHz 500Watt HF Balun DIY Waterproof 1:1 Voltage Balun with UHF Female (SO-239) Connector **Brand:** fumei **Price:** € 70.46 **Availability:** ✅ In Stock ## Summary > 📡 Power your signal, silence the noise — stay ahead on the airwaves! ## Quick Answers - **What is this?** Femei 1-50MHz 500Watt HF Balun DIY Waterproof 1:1 Voltage Balun with UHF Female (SO-239) Connector by fumei - **How much does it cost?** € 70.46 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/556878720-femei-1-50mhz-500watt-hf-balun-diy-waterproof-1-1) ## Best For - fumei enthusiasts ## Why This Product - Trusted fumei brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless RF Isolation:** Eliminates stray RF interference for crystal-clear signals - • **Robust 500W Power Rating:** Handles high power loads without breaking a sweat - • **Compact & Waterproof Design:** Durable ABS enclosure built for any environment - • **Plug & Play SO-239 Connector:** Quick, secure connection for instant station upgrades - • **Universal 50Ω Compatibility:** Perfectly matches standard coax for hassle-free setup ## Overview The Femei 1-50MHz 500W HF Balun is a compact, waterproof 1:1 voltage balun designed to optimize amateur radio performance by reducing stray RF interference. Featuring a wide frequency range of 1 to 50 MHz, a robust 500W power rating, and a standard SO-239 UHF female connector, it ensures reliable impedance matching and improved signal clarity for both fixed and mobile stations. ## Description The item is designed to be placed in line with a 50-Ohm coax. The RF Isolator is effective from 1 to 50 MHz. It can improve the performance of all amateur stations, fixed or mobile. It will reduce or eliminate stray RF often found on coax. This stray RF can cause burns and other problems with electronic equipment in ham-shacks and vehicles. Specifications: Frequency Range: 1-50Mhz Max Power: 500W SWR: <1.5 Impedance: 50Ω Connector Type: SO-239 Conversion Ratio: 1:1 Enclosure Material: ABS Plastic Package Includes: 1 x Balun ## Features - Frequency range: 1 - 50 MHz - Impedance: 50 Ohm - Max. power rating: 500W - Connector: MJ (SO-239) - Weight: 180g; Body Size: 88x45x45mm - 1:4 ratio balun is online, just search B0DZ6PJKFK on desertcart ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C942LJ45 | | AntennaDescription | Radio | | Best Sellers Rank | #557 in Radio Antennas | | Brand | Fumei | | Color | white | | Customer Reviews | 4.5 4.5 out of 5 stars (94) | | Impedance | 50 Ohms | | Item Dimensions L x W x H | 3.43"L x 1.77"W x 3.43"H | | Manufacturer | DotDotTech | | Number of Channels | 1 | | Number of Items | 1 | | UPC | 619660759403 | | Unit Count | 1.0 Count | | Warranty Description | 1 year repair service | ## Product Details - **Antenna:** Radio - **Brand:** Fumei - **Color:** white - **Impedance:** 50 Ohms - **Manufacturer:** DotDotTech - **Number of Channels:** 1 - **Number of Packs:** 1 - **Product Dimensions:** 3.43"L x 1.77"W x 3.43"H - **UPC:** 619660759403 - **Unit Count:** 1.0 Count ## Images ![Femei 1-50MHz 500Watt HF Balun DIY Waterproof 1:1 Voltage Balun with UHF Female (SO-239) Connector - Image 1](https://m.media-amazon.com/images/I/61Uja7a3BmL.jpg) ![Femei 1-50MHz 500Watt HF Balun DIY Waterproof 1:1 Voltage Balun with UHF Female (SO-239) Connector - Image 2](https://m.media-amazon.com/images/I/61Mqy62qDNL.jpg) ![Femei 1-50MHz 500Watt HF Balun DIY Waterproof 1:1 Voltage Balun with UHF Female (SO-239) Connector - Image 3](https://m.media-amazon.com/images/I/61IP99DhAkL.jpg) ![Femei 1-50MHz 500Watt HF Balun DIY Waterproof 1:1 Voltage Balun with UHF Female (SO-239) Connector - Image 4](https://m.media-amazon.com/images/I/81yr5qbK6mL.jpg) ![Femei 1-50MHz 500Watt HF Balun DIY Waterproof 1:1 Voltage Balun with UHF Female (SO-239) Connector - Image 5](https://m.media-amazon.com/images/I/71L5NsaaIGL.jpg) ## Frequently Bought Together - Femei 1-50MHz 500Watt HF Balun DIY Waterproof Antenna Balun 1:1 Voltage Balun with UHF Female (SO-239) Connector - Super Antenna MS135 SuperWire Stealth Bulk 135 feet Wire #18 Stranded ham Radio Amateur PTFE - RFAdapter RG8x Coaxial Cable, CB Coax Cable, 50ft UHF PL259 Male to Male Low Loss CB Antenna Cables, 50 Ohm for HAM Radio, Antenna Analyzer --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/556878720-femei-1-50mhz-500watt-hf-balun-diy-waterproof-1-1](https://www.desertcart.hr/products/556878720-femei-1-50mhz-500watt-hf-balun-diy-waterproof-1-1) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-25*