{"product_id":"rfi-yagi-antenna-20-element-uhf-803-896mhz-yb820-81","title":"RFI  Yagi Antenna 20 Element UHF 803-896MHz YB820-81","description":"\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eRFI YB820-81 20 Element UHF Yagi Antenna 803–896MHz\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eRFI YB820-81 20 Element UHF Yagi Antenna\u003c\/strong\u003e is a high-gain directional antenna engineered for professional radio and wireless communications operating across the \u003cstrong\u003e803–896MHz\u003c\/strong\u003e frequency range. Designed for demanding fixed-site installations, it provides outstanding performance for long-distance point-to-point links, telemetry, SCADA, data radio, and specialised UHF communication systems.\u003c\/p\u003e\n\u003cp\u003eFeaturing a \u003cstrong\u003e20-element directional design\u003c\/strong\u003e, the YB820-81 delivers exceptional forward gain, excellent front-to-back ratio, and superior signal directivity. Constructed from high-quality aluminium with corrosion-resistant components, this antenna is built to provide years of reliable outdoor operation in commercial, industrial, and government communication networks.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1\u003eWhy Choose the RFI YB820-81?\u003c\/h1\u003e\n\u003cp\u003eThe YB820-81 delivers exceptional directional performance where long-distance, high-reliability communications are essential.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOperates across the \u003cstrong\u003e803–896MHz\u003c\/strong\u003e UHF frequency range\u003c\/li\u003e\n\u003cli\u003eHigh-performance \u003cstrong\u003e20-element Yagi\u003c\/strong\u003e design\u003c\/li\u003e\n\u003cli\u003eHigh directional gain for extended communication range\u003c\/li\u003e\n\u003cli\u003eLightweight, corrosion-resistant aluminium construction\u003c\/li\u003e\n\u003cli\u003eExcellent front-to-back ratio for reduced interference\u003c\/li\u003e\n\u003cli\u003eNarrow beamwidth for precise signal focus\u003c\/li\u003e\n\u003cli\u003eSuitable for analogue and digital radio systems\u003c\/li\u003e\n\u003cli\u003eDesigned for permanent outdoor installation\u003c\/li\u003e\n\u003cli\u003eLow-maintenance construction\u003c\/li\u003e\n\u003cli\u003eAustralian designed and manufactured\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch1\u003eHigh-Gain Directional Performance\u003c\/h1\u003e\n\u003cp\u003eThe 20-element design provides significantly higher gain than smaller directional antennas, allowing communications over greater distances with improved signal quality.\u003c\/p\u003e\n\u003cp\u003eBenefits include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExtended communication range\u003c\/li\u003e\n\u003cli\u003eIncreased signal strength\u003c\/li\u003e\n\u003cli\u003eImproved receive sensitivity\u003c\/li\u003e\n\u003cli\u003eReduced interference\u003c\/li\u003e\n\u003cli\u003eBetter network reliability\u003c\/li\u003e\n\u003cli\u003eHigher link efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIts focused radiation pattern makes the YB820-81 ideal for applications requiring reliable long-distance communication.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1\u003eDesigned for Fixed Communication Networks\u003c\/h1\u003e\n\u003cp\u003eThe YB820-81 is ideally suited to permanent infrastructure where dependable RF performance is critical.\u003c\/p\u003e\n\u003cp\u003eTypical applications include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePoint-to-point radio links\u003c\/li\u003e\n\u003cli\u003eSCADA systems\u003c\/li\u003e\n\u003cli\u003eTelemetry networks\u003c\/li\u003e\n\u003cli\u003eIndustrial communications\u003c\/li\u003e\n\u003cli\u003eUtility infrastructure\u003c\/li\u003e\n\u003cli\u003eMining operations\u003c\/li\u003e\n\u003cli\u003eTransport communications\u003c\/li\u003e\n\u003cli\u003eRemote monitoring systems\u003c\/li\u003e\n\u003cli\u003eFixed wireless networks\u003c\/li\u003e\n\u003cli\u003eGovernment communication sites\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIts directional characteristics help maximise network performance while minimising unwanted signals.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1\u003eBuilt for Harsh Outdoor Environments\u003c\/h1\u003e\n\u003cp\u003eConstructed using quality aluminium components, the YB820-81 is designed to deliver long-term reliability in exposed outdoor locations.\u003c\/p\u003e\n\u003cp\u003eConstruction features include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight aluminium boom\u003c\/li\u003e\n\u003cli\u003ePrecision aluminium elements\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant materials\u003c\/li\u003e\n\u003cli\u003eWeather-resistant design\u003c\/li\u003e\n\u003cli\u003eLow-maintenance construction\u003c\/li\u003e\n\u003cli\u003eSuitable for permanent tower and mast installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhether installed on communications towers, industrial facilities, or remote infrastructure, the antenna is built to withstand demanding environmental conditions.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1\u003eImproved Signal Quality\u003c\/h1\u003e\n\u003cp\u003eThe directional design helps reject unwanted RF signals while concentrating energy where it is needed most.\u003c\/p\u003e\n\u003cp\u003eAdvantages include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReduced co-channel interference\u003c\/li\u003e\n\u003cli\u003eImproved signal-to-noise ratio\u003c\/li\u003e\n\u003cli\u003eEnhanced communication reliability\u003c\/li\u003e\n\u003cli\u003eBetter long-distance performance\u003c\/li\u003e\n\u003cli\u003eStable wireless links\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis makes the antenna ideal for critical communication networks where dependable performance is essential.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1\u003eTypical Applications\u003c\/h1\u003e\n\u003cp\u003eThe RFI YB820-81 is suitable for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFixed radio infrastructure\u003c\/li\u003e\n\u003cli\u003eSCADA systems\u003c\/li\u003e\n\u003cli\u003eTelemetry networks\u003c\/li\u003e\n\u003cli\u003eUtility communications\u003c\/li\u003e\n\u003cli\u003eMining operations\u003c\/li\u003e\n\u003cli\u003eTransport infrastructure\u003c\/li\u003e\n\u003cli\u003eIndustrial communications\u003c\/li\u003e\n\u003cli\u003eCommunications towers\u003c\/li\u003e\n\u003cli\u003eRemote monitoring sites\u003c\/li\u003e\n\u003cli\u003eGovernment radio networks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch1\u003eWhy Buy From Mobile Systems Limited?\u003c\/h1\u003e\n\u003cp\u003eMobile Systems Limited supplies professional antenna and radio communication solutions throughout New Zealand.\u003c\/p\u003e\n\u003cp\u003eOur experienced team provides:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFixed-site communication system design\u003c\/li\u003e\n\u003cli\u003eDirectional antenna selection\u003c\/li\u003e\n\u003cli\u003eProfessional installation services\u003c\/li\u003e\n\u003cli\u003eRF testing and optimisation\u003c\/li\u003e\n\u003cli\u003eCoverage planning\u003c\/li\u003e\n\u003cli\u003eTower and repeater infrastructure\u003c\/li\u003e\n\u003cli\u003eNetwork commissioning\u003c\/li\u003e\n\u003cli\u003eOngoing maintenance and technical support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhether you're upgrading an existing communication link or building a new fixed wireless network, we'll help you select the right antenna for maximum performance and reliability.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1\u003eFrequently Asked Questions\u003c\/h1\u003e\n\u003ch3\u003eWhat frequency range does the YB820-81 operate on?\u003c\/h3\u003e\n\u003cp\u003eThe antenna is designed to operate across the \u003cstrong\u003e803–896MHz\u003c\/strong\u003e UHF frequency range.\u003c\/p\u003e\n\u003ch3\u003eWhat are the advantages of a 20-element Yagi antenna?\u003c\/h3\u003e\n\u003cp\u003eA 20-element Yagi provides higher directional gain, increased communication distance, improved signal quality, and better rejection of unwanted interference than antennas with fewer elements.\u003c\/p\u003e\n\u003ch3\u003eWhat applications is the YB820-81 designed for?\u003c\/h3\u003e\n\u003cp\u003eThe antenna is ideal for point-to-point radio links, telemetry, SCADA systems, industrial communications, utility networks, mining operations, transport infrastructure, and remote monitoring.\u003c\/p\u003e\n\u003ch3\u003eIs the antenna suitable for outdoor installation?\u003c\/h3\u003e\n\u003cp\u003eYes. The YB820-81 is manufactured using corrosion-resistant aluminium and is designed for permanent outdoor use in demanding environments.\u003c\/p\u003e\n\u003ch3\u003eCan this antenna be used with digital communication systems?\u003c\/h3\u003e\n\u003cp\u003eYes. It is suitable for both analogue and digital communication systems operating within the supported frequency range.\u003c\/p\u003e\n\u003ch3\u003eCan Mobile Systems Limited install this antenna?\u003c\/h3\u003e\n\u003cp\u003eAbsolutely. Mobile Systems Limited supplies, installs, aligns, tests, and commissions professional fixed-site antenna systems, repeater infrastructure, and wireless communication networks throughout New Zealand.\u003c\/p\u003e","brand":"RFI","offers":[{"title":"Default Title","offer_id":44603207122995,"sku":"YB820-81","price":761.3,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0026\/7357\/3939\/files\/RFI-YB820-81.png?v=1785281113","url":"https:\/\/mobilesystems.nz\/products\/rfi-yagi-antenna-20-element-uhf-803-896mhz-yb820-81","provider":"MobileSystems","version":"1.0","type":"link"}