{"product_id":"rfi-col8-uhf-collinear-antenna-380-530-mhz","title":"RFI COL8 UHF Collinear Antenna, 380-530 MHz","description":"\u003ch2\u003eRFI COL8 UHF Collinear Antenna, 380-530 MHz\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e6dBd high-gain collinear with -2° beam tilt for optimised range at sites up to 2000m elevation.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe COL8 is a high gain omnidirectional collinear antenna and RFI's most popular and widely used UHF base station antenna. The COL8 is a series fed collinear, custom tuned to user specified frequencies. By design, each antenna is constructed to exhibit a beam tilt of -2° at the highest of the operating frequencies specified, gradually increasing with lower frequencies within the defined operational bandwidth.\u003c\/p\u003e\n\u003cp\u003eThe result is an antenna which provides excellent null fill coverage and optimised range for antenna sites where average height above ground level is not greater than 2000m. The radiating elements are constructed of alodined aluminium with all internal metal junctions welded to prevent the generation of intermodulation products and spurious emissions.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e6dBd (8dBi) gain\u003c\/strong\u003e means strong omnidirectional coverage across a 10MHz operating bandwidth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-2° beam tilt\u003c\/strong\u003e means excellent null fill coverage optimised for sites up to 2000m elevation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWelded aluminium construction\u003c\/strong\u003e means minimised intermodulation products and spurious emissions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC grounded design\u003c\/strong\u003e means better lightning protection and reduced static noise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSingle and multi-frequency UHF base station applications\u003c\/li\u003e\n\u003cli\u003eSites where average height above ground level is not greater than 2000m\u003c\/li\u003e\n\u003cli\u003eApplications requiring excellent null fill coverage\u003c\/li\u003e\n\u003cli\u003eGeneral purpose high-gain UHF coverage in the 380-530MHz band\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse: collapse;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eProduct Code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eCOL8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eFrequency Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e380-530MHz UHF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eGain\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e6dBd \/ 8dBi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eTuned Bandwidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e10MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eVSWR\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u0026lt;1.5:1 (14dB return loss)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eNominal Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e50Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eVertical Beamwidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e14°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eInput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e200W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003ePassive IM 3rd Order\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e-130dBc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eConnector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eN female bulkhead\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eAlodined aluminium elements with white fibreglass radome\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e3.1m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e1.5kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eMounting Area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e300mm x 38mm diam. alodined aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eSuggested Clamps\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e2 x UC1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eWind Load @160km\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e97N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eWind Gust Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e211km\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e\u003cstrong\u003eTorque @160km\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e124Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/mobilesystems.nz\/blogs\/q-a\/radio-antennas-q-a\"\u003eRadio Antennas Q\u0026amp;A\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the -2° beam tilt achieve?\u003c\/strong\u003e\u003cbr\u003eThe negative beam tilt directs more energy towards the ground near the antenna site, improving null fill coverage and making the COL8 well suited to sites where average height above ground level is not greater than 2000m.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this antenna suitable for multi-frequency use?\u003c\/strong\u003e\u003cbr\u003eYes, the COL8 provides a 10MHz operating bandwidth within VSWR limits of less than 1.5:1, making it suitable for single and multi frequency applications.\u003c\/p\u003e","brand":"RFI","offers":[{"title":"Default","offer_id":44811128274995,"sku":"COL8","price":1286.74,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0026\/7357\/3939\/files\/COL8.png?v=1788303372","url":"https:\/\/mobilesystems.nz\/products\/rfi-col8-uhf-collinear-antenna-380-530-mhz","provider":"MobileSystems","version":"1.0","type":"link"}