{"product_id":"sirio-twin-log-4-cb-mobile-antenna","title":"Sirio Twin-Log 4 CB Mobile Antenna 26.65-27.75MHz, 1500W Peak, 125cm, 3\/8\"","description":"\u003cp\u003eThe \u003cstrong\u003eSirio Twin Log 4\u003c\/strong\u003e is a high-power CB mobile antenna using Sirio's parallel-connected twin-wire logarithmic loading system to reduce RF resistance and heat loss. It is tunable across \u003cstrong\u003e26.65-27.75MHz\u003c\/strong\u003e and uses a heavy-duty fibreglass radiator with a standard \u003cstrong\u003e3\/8\"-24 male thread\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWith an approximate height of \u003cstrong\u003e1250mm\u003c\/strong\u003e, the Twin-Log 4 provides wider bandwidth and higher power handling than the Twin-Log 3 while retaining a practical mobile format.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-power CB mobile antenna\u003c\/li\u003e\n\u003cli\u003eParallel twin-wire logarithmic loaded design\u003c\/li\u003e\n\u003cli\u003eTunable from 26.65-27.75MHz\u003c\/li\u003e\n\u003cli\u003e500W CW continuous power handling\u003c\/li\u003e\n\u003cli\u003e1500W CW short-time power handling\u003c\/li\u003e\n\u003cli\u003eAt least 1.1MHz bandwidth at SWR ≤2\u003c\/li\u003e\n\u003cli\u003eHeavy-duty fibreglass rod\u003c\/li\u003e\n\u003cli\u003eStainless-steel tuning top\u003c\/li\u003e\n\u003cli\u003e3\/8\"-24 male mounting thread\u003c\/li\u003e\n\u003cli\u003eOmnidirectional vertical radiation pattern\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Sirio Antenne\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Twin-Log 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 2408215.03\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Twin-wire logarithmic loaded CB mobile antenna\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Range:\u003c\/strong\u003e 26.65-27.75MHz, tunable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpedance:\u003c\/strong\u003e 50 ohms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRadiation:\u003c\/strong\u003e Omnidirectional\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolarisation:\u003c\/strong\u003e Linear vertical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSWR at Resonance:\u003c\/strong\u003e ≤1.3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBandwidth:\u003c\/strong\u003e ≥1.1MHz at SWR ≤2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Power:\u003c\/strong\u003e 500W CW continuous \/ 1500W CW short time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e Approx. 1250mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 350g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e 3\/8\"-24 male thread\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterials:\u003c\/strong\u003e Copper, chromed brass, stainless steel and fibreglass\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSirio Twin-Log 4 antenna\u003c\/li\u003e\n\u003cli\u003eInstallation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eThe Twin-Log 4 is designed for installation on a compatible 3\/8\"-24 female stud or mount. Tune the antenna after installation for the required operating frequency. \u003c\/p\u003e","brand":"Sirio","offers":[{"title":"Default Title","offer_id":58900875870552,"sku":"MOON-57-405","price":26.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/8753\/5192\/files\/sirio-twin-log-3-cb-mobile-antenna_e5642a8c-f7b4-40ec-ad9f-19b54a279b4b.png?v=1792667226","url":"https:\/\/kamsat.co.uk\/products\/sirio-twin-log-4-cb-mobile-antenna","provider":"Kamsat","version":"1.0","type":"link"}