{"product_id":"rfi-smd20-36-p-vhf-side-mounted-dipole-130-150mhz-4-3-10-f-connector-low-pim","title":"RFI SMD20-36-P VHF Side Mounted Dipole 130-150MHz 4.3-10 (F) Connector - Low PIM","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eRFI SMD20-36-P VHF Side Mounted Dipole Antenna 130–150MHz Low PIM with 4.3-10 Female Connector\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eRFI SMD20-36-P VHF Side Mounted Dipole Antenna\u003c\/strong\u003e is a professional-grade \u003cstrong\u003ebase station antenna\u003c\/strong\u003e engineered for high-performance VHF communications across the \u003cstrong\u003e130–150MHz\u003c\/strong\u003e frequency band. Designed specifically for mission-critical radio networks, the SMD20 Series combines broad bandwidth, outstanding RF performance, and \u003cstrong\u003eLow Passive Intermodulation (Low PIM)\u003c\/strong\u003e characteristics, making it ideal for modern public safety, commercial, mining, transport, utility, and telecommunications infrastructure.\u003c\/p\u003e\n\u003cp\u003eBuilt with a \u003cstrong\u003ewelded aluminium construction\u003c\/strong\u003e and finished with a corrosion-resistant alodined coating, the SMD20-36-P is designed to deliver years of reliable service in demanding outdoor environments. Its \u003cstrong\u003e4.3-10 Female connector\u003c\/strong\u003e offers low-loss, high-power performance while supporting today's low PIM system requirements. The antenna is also \u003cstrong\u003eDC grounded\u003c\/strong\u003e, providing protection against static build-up and assisting with lightning dissipation. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1\u003eWhy Choose the RFI SMD20-36-P?\u003c\/h1\u003e\n\u003cp\u003eThe SMD20-36-P is designed for organisations that require reliable VHF coverage, exceptional RF performance, and infrastructure that can grow with future network demands.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCovers the \u003cstrong\u003e130–150MHz VHF\u003c\/strong\u003e frequency range\u003c\/li\u003e\n\u003cli\u003eLow Passive Intermodulation (\u003cstrong\u003e\u0026lt;-150dBc PIM\u003c\/strong\u003e)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.3-10 Female connector\u003c\/strong\u003e with cable tail\u003c\/li\u003e\n\u003cli\u003eBroadband design with \u003cstrong\u003eno tuning required\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eVertical polarisation\u003c\/li\u003e\n\u003cli\u003eVSWR better than \u003cstrong\u003e1.5:1\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eRated for up to \u003cstrong\u003e750 Watts\u003c\/strong\u003e input power\u003c\/li\u003e\n\u003cli\u003eDC grounded for lightning and static protection\u003c\/li\u003e\n\u003cli\u003eWelded aluminium construction with alodined finish\u003c\/li\u003e\n\u003cli\u003eSuitable for phased arrays delivering \u003cstrong\u003e3dBd or 6dBd gain\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eIdeal for commercial, government and public safety radio infrastructure \u003cspan class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch1\u003eDesigned for Professional VHF Infrastructure\u003c\/h1\u003e\n\u003cp\u003eThe SMD20-36-P has been developed for fixed radio sites where dependable performance and long-term reliability are essential.\u003c\/p\u003e\n\u003cp\u003eIts broadband design allows the antenna to operate across the entire \u003cstrong\u003e130–150MHz\u003c\/strong\u003e band without requiring field tuning, making installation faster while simplifying future network changes.\u003c\/p\u003e\n\u003cp\u003eIdeal for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePMR and LMR radio systems\u003c\/li\u003e\n\u003cli\u003ePublic safety communications\u003c\/li\u003e\n\u003cli\u003eUtility networks\u003c\/li\u003e\n\u003cli\u003eMining operations\u003c\/li\u003e\n\u003cli\u003eTransport communications\u003c\/li\u003e\n\u003cli\u003eGovernment radio networks\u003c\/li\u003e\n\u003cli\u003eCritical infrastructure\u003c\/li\u003e\n\u003cli\u003eTelecommunications sites\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch1\u003eLow PIM Performance for Modern Radio Networks\u003c\/h1\u003e\n\u003cp\u003ePassive Intermodulation (PIM) can significantly affect receiver sensitivity, particularly in high-power multi-channel systems.\u003c\/p\u003e\n\u003cp\u003eThe SMD20-36-P features an excellent \u003cstrong\u003ePassive Intermodulation rating of better than -150dBc\u003c\/strong\u003e, making it suitable for modern shared radio sites where multiple transmitters operate simultaneously. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBenefits include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReduced RF interference\u003c\/li\u003e\n\u003cli\u003eImproved receiver sensitivity\u003c\/li\u003e\n\u003cli\u003eCleaner transmitted signals\u003c\/li\u003e\n\u003cli\u003eBetter network reliability\u003c\/li\u003e\n\u003cli\u003eIdeal for multi-operator communications sites\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch1\u003eExpandable Through Phased Arrays\u003c\/h1\u003e\n\u003cp\u003eOne of the major advantages of the SMD20 Series is its ability to be configured into phased antenna arrays.\u003c\/p\u003e\n\u003cp\u003eUsing the appropriate phasing harnesses, multiple antennas can be combined to provide:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eApproximately \u003cstrong\u003e3dBd gain\u003c\/strong\u003e using dual antenna arrays\u003c\/li\u003e\n\u003cli\u003eApproximately \u003cstrong\u003e6dBd gain\u003c\/strong\u003e using four-stack arrays\u003c\/li\u003e\n\u003cli\u003eTailored cardioid coverage patterns\u003c\/li\u003e\n\u003cli\u003eImproved sector coverage\u003c\/li\u003e\n\u003cli\u003eEnhanced network capacity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis flexibility allows network designers to optimise coverage for virtually any site. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1\u003eBuilt for Harsh Outdoor Environments\u003c\/h1\u003e\n\u003cp\u003eThe SMD20-36-P has been engineered for permanent outdoor installation.\u003c\/p\u003e\n\u003cp\u003eConstruction features include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWelded aluminium elements\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant alodined finish\u003c\/li\u003e\n\u003cli\u003eHeavy-duty mounting design\u003c\/li\u003e\n\u003cli\u003eExcellent weather resistance\u003c\/li\u003e\n\u003cli\u003eLong service life\u003c\/li\u003e\n\u003cli\u003eLow maintenance requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIts robust design makes it suitable for exposed hilltop sites, communications towers, industrial facilities, and coastal installations.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1\u003eHigh Power Capability\u003c\/h1\u003e\n\u003cp\u003eDesigned for demanding radio infrastructure, the antenna supports:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUp to \u003cstrong\u003e750 Watts\u003c\/strong\u003e RF input power\u003c\/li\u003e\n\u003cli\u003eVertical polarisation\u003c\/li\u003e\n\u003cli\u003eBroadband operation\u003c\/li\u003e\n\u003cli\u003eExcellent impedance matching\u003c\/li\u003e\n\u003cli\u003eReliable long-term performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCombined with the \u003cstrong\u003e4.3-10 connector\u003c\/strong\u003e, the antenna offers low-loss performance while supporting today's high-power communications systems. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1\u003eTypical Applications\u003c\/h1\u003e\n\u003cp\u003eThe RFI SMD20-36-P is ideally suited for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePublic safety radio networks\u003c\/li\u003e\n\u003cli\u003eEmergency services\u003c\/li\u003e\n\u003cli\u003eMining communications\u003c\/li\u003e\n\u003cli\u003eUtility communications\u003c\/li\u003e\n\u003cli\u003eTransport operators\u003c\/li\u003e\n\u003cli\u003eLocal government\u003c\/li\u003e\n\u003cli\u003eCommercial radio infrastructure\u003c\/li\u003e\n\u003cli\u003eTelecommunications providers\u003c\/li\u003e\n\u003cli\u003eIndustrial manufacturing sites\u003c\/li\u003e\n\u003cli\u003eFixed VHF repeater installations\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 radio infrastructure solutions throughout New Zealand.\u003c\/p\u003e\n\u003cp\u003eOur experienced team can assist with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBase station antenna selection\u003c\/li\u003e\n\u003cli\u003eRepeater system design\u003c\/li\u003e\n\u003cli\u003eAntenna array design\u003c\/li\u003e\n\u003cli\u003eRF coverage planning\u003c\/li\u003e\n\u003cli\u003eFeedline selection\u003c\/li\u003e\n\u003cli\u003eTower and mast installations\u003c\/li\u003e\n\u003cli\u003eRadio licensing guidance\u003c\/li\u003e\n\u003cli\u003eProfessional installation and commissioning\u003c\/li\u003e\n\u003cli\u003eOngoing servicing and technical support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhether you're upgrading an existing repeater site or designing a new communications network, we can provide a complete end-to-end solution.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1\u003eFrequently Asked Questions\u003c\/h1\u003e\n\u003ch3\u003eWhat frequency range does the SMD20-36-P cover?\u003c\/h3\u003e\n\u003cp\u003eThe antenna operates across the \u003cstrong\u003e130–150MHz VHF\u003c\/strong\u003e frequency range.\u003c\/p\u003e\n\u003ch3\u003eWhat does Low PIM mean?\u003c\/h3\u003e\n\u003cp\u003eLow Passive Intermodulation (Low PIM) reduces unwanted RF interference generated within antenna systems, making it ideal for high-performance multi-channel communications networks.\u003c\/p\u003e\n\u003ch3\u003eDoes the antenna require tuning?\u003c\/h3\u003e\n\u003cp\u003eNo. The SMD20-36-P provides \u003cstrong\u003efull-band coverage without field tuning\u003c\/strong\u003e, simplifying installation and maintenance. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eCan this antenna be used in phased arrays?\u003c\/h3\u003e\n\u003cp\u003eYes. Multiple antennas can be combined using appropriate phasing harnesses to achieve approximately \u003cstrong\u003e3dBd or 6dBd gain\u003c\/strong\u003e and customised coverage patterns. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWhat connector does it use?\u003c\/h3\u003e\n\u003cp\u003eThe antenna is supplied with a \u003cstrong\u003e4.3-10 Female connector\u003c\/strong\u003e and cable tail, providing a low-loss connection suitable for professional RF infrastructure. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eCan Mobile Systems Limited design complete repeater sites?\u003c\/h3\u003e\n\u003cp\u003eYes. Mobile Systems Limited designs, supplies, installs, and maintains complete repeater systems, including antennas, feeders, combiners, duplexers, towers, and radio equipment throughout New Zealand.\u003c\/p\u003e","brand":"RFI","offers":[{"title":"Default Title","offer_id":44605751623731,"sku":"SMD20-36-P","price":905.05,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0026\/7357\/3939\/files\/SMD20-36-P.png?v=1785382646","url":"https:\/\/mobilesystems.nz\/products\/rfi-smd20-36-p-vhf-side-mounted-dipole-130-150mhz-4-3-10-f-connector-low-pim","provider":"MobileSystems","version":"1.0","type":"link"}