{"product_id":"sirio-gps27-1-2","title":"Sirio GPS 27 1\/2λ Base 10m Ham Antenna 250W Continuous, 2.15 dBi Gain, Tunable 26.4-29MHz","description":"\u003cp\u003eThe \u003cstrong\u003eSirio GPS 27 1\/2\u003c\/strong\u003e is a full-size, 1\/2λ base station antenna engineered in Italy specifically for 10-metre amateur radio use. With 250W continuous power handling (750W short time CW), a wide tunable frequency range of 26.4–29 MHz, and a gain of 0 dBd (2.15 dBi), it delivers clean, reliable omnidirectional performance across the full 10m band. The 1\/2λ design offers a lower radiation angle than a 1\/4λ antenna, making it a solid choice for DX-oriented 10m operators who want a no-radials base antenna. Standing at 5950mm (19.52ft) tall and designed for on-mast mounting, it's constructed from aluminium, copper, galvanised steel, and nylon for robust, long-lasting outdoor performance.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e250W continuous power handling (CW)\u003c\/li\u003e\n\u003cli\u003e750W short time power handling (CW)\u003c\/li\u003e\n\u003cli\u003eGain: 0 dBd \/ 2.15 dBi\u003c\/li\u003e\n\u003cli\u003eWide tunable frequency range: 26.4–29 MHz\u003c\/li\u003e\n\u003cli\u003eOptimised for 10-metre amateur radio (HAM)\u003c\/li\u003e\n\u003cli\u003eOmnidirectional radiation pattern\u003c\/li\u003e\n\u003cli\u003eLinear vertical polarisation\u003c\/li\u003e\n\u003cli\u003e1\/2λ design — lower radiation angle for improved DX performance\u003c\/li\u003e\n\u003cli\u003eOn-mast mounting\u003c\/li\u003e\n\u003cli\u003eSO-239 (UHF-Female) connector\u003c\/li\u003e\n\u003cli\u003eHeight: 5950mm \/ 19.52ft\u003c\/li\u003e\n\u003cli\u003eDurable materials: aluminium, copper, galvanised steel \u0026amp; nylon\u003c\/li\u003e\n\u003cli\u003eMade in Italy by Sirio\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eType: 1\/2λ base antenna\u003c\/li\u003e\n\u003cli\u003eRadiation: Omnidirectional\u003c\/li\u003e\n\u003cli\u003ePolarisation: Linear vertical\u003c\/li\u003e\n\u003cli\u003eFrequency range: 26.4–29 MHz (tunable)\u003c\/li\u003e\n\u003cli\u003eSystems: 10m amateur (HAM)\u003c\/li\u003e\n\u003cli\u003eGain: 0 dBd \/ 2.15 dBi\u003c\/li\u003e\n\u003cli\u003eMax power: 750W peak (CW short time) | 250W continuous (CW)\u003c\/li\u003e\n\u003cli\u003eConnector: SO-239 (UHF-Female)\u003c\/li\u003e\n\u003cli\u003eHeight: 5950mm \/ 19.52ft\u003c\/li\u003e\n\u003cli\u003eMounting: On-mast\u003c\/li\u003e\n\u003cli\u003eMaterials: Aluminium, copper, galvanised steel, nylon\u003c\/li\u003e\n\u003cli\u003eCountry of origin: Italy\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SIRIO","offers":[{"title":"Default Title","offer_id":55296440336728,"sku":"SIRIO-GPS27 1\/2","price":54.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/8753\/5192\/files\/sirio_gpe_half.avif?v=1752577984","url":"https:\/\/kamsat.co.uk\/products\/sirio-gps27-1-2","provider":"Kamsat","version":"1.0","type":"link"}