{"product_id":"moonraker-mu-49-49-1-1kw-unun-transformer","title":"Moonraker MU-49 49:1 1kW EFHW Unun Transformer","description":"\n\u003cp\u003eThe \u003cstrong\u003eMoonraker MU-49\u003c\/strong\u003e is a high-power \u003cstrong\u003e49:1 unun matching transformer\u003c\/strong\u003e designed for multi-band end-fed half-wave (EFHW) antennas. Suitable for permanent home stations and portable field installations, it allows an operator to build a multi-band HF antenna by adding a suitable length of antenna wire.\u003c\/p\u003e\n\n\u003ch2\u003eMulti-band EFHW operation\u003c\/h2\u003e\n\u003cp\u003eThe MU-49 covers \u003cstrong\u003e3.5–30 MHz\u003c\/strong\u003e, spanning the main HF amateur bands. Moonraker gives 40 metres of antenna wire as an example for operation across the 80, 40, 20, 15 and 10 metre bands.\u003c\/p\u003e\n\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e49:1 unun impedance matching transformer\u003c\/li\u003e\n  \u003cli\u003eDesigned for multi-band end-fed half-wave antennas\u003c\/li\u003e\n  \u003cli\u003eSuitable for home and portable field use\u003c\/li\u003e\n  \u003cli\u003eWide 3.5–30 MHz operating range\u003c\/li\u003e\n  \u003cli\u003eMaximum stated power handling: 1 kW\u003c\/li\u003e\n  \u003cli\u003eInsertion loss from 0.3 to 1.65 dB, depending on frequency\u003c\/li\u003e\n  \u003cli\u003eSO-239 coaxial connection\u003c\/li\u003e\n  \u003cli\u003eSide-mounted connection studs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e MU-49\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTransformer type:\u003c\/strong\u003e 49:1 unun\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency coverage:\u003c\/strong\u003e 3.5–30 MHz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower handling:\u003c\/strong\u003e Up to 1 kW\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsertion loss:\u003c\/strong\u003e 0.3–1.65 dB, frequency dependent\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRF connector:\u003c\/strong\u003e SO-239\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWire connections:\u003c\/strong\u003e Side studs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuild a practical multi-band wire antenna\u003c\/h2\u003e\n\u003cp\u003eConnect a suitable antenna wire to the transformer and feed it using 50-ohm coaxial cable terminated with a PL-259 plug. The final wire length and installation should be adjusted for the required bands and checked with a suitable antenna analyser or SWR meter before transmitting.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e The 1 kW figure is the manufacturer's stated maximum power-handling rating. Always use antenna wire, coaxial cable and connectors suitable for the intended RF power and operating conditions.\u003c\/p\u003e\n","brand":"Moonraker","offers":[{"title":"Default Title","offer_id":57853911040344,"sku":"MOON-99-680","price":99.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/8753\/5192\/files\/moonraker-mu-49-2.png?v=1785765113","url":"https:\/\/kamsat.co.uk\/products\/moonraker-mu-49-49-1-1kw-unun-transformer","provider":"Kamsat","version":"1.0","type":"link"}