{"product_id":"sirio-sa-270-mn-dual-band-2m-70cm-bands-200w","title":"Sirio SA-270MN Dual Band VHF\/UHF Base Antenna 2m\/70cm 200W (N Female)","description":"\u003ch2\u003eSirio SA 270 MN Dual Band Base Antenna 2m\/70cm 200W (N Female)\u003c\/h2\u003e\n\u003cp\u003eThe Sirio SA 270MN is a high-gain dual band base station antenna covering the 2m and 70cm amateur bands with no tuning required. Built from aluminium, fibreglass, and stainless steel, it's engineered for permanent mast-mounted installations where durability and performance matter. With 200W power handling and compatibility across HAM, TETRA, ORBCOMM M2M, and LoRa\/SIGFOX\/ISM 433MHz systems, it's a versatile workhorse for any shack or repeater site.\u003c\/p\u003e\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Range:\u003c\/strong\u003e 142–148 MHz (VHF) \u0026amp; 427–442 MHz (UHF) — no tuning required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e VHF: ⁶⁄₈λ \/ UHF: 3 × ⅝λ collinear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Systems:\u003c\/strong\u003e 2m HAM, 70cm HAM, ORBCOMM M2M, TETRA, CDMA-450, ISM\/SIGFOX\/LoRa 433MHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGain:\u003c\/strong\u003e VHF: 2 dBd (4.15 dBi) \/ UHF: 4.2 dBd (6.35 dBi)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Power:\u003c\/strong\u003e 200W\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\u003eGrounding:\u003c\/strong\u003e All metal parts DC-grounded; inner conductor capacitively coupled\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector:\u003c\/strong\u003e N Female\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMechanical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterials:\u003c\/strong\u003e Aluminium, Chromed Brass, Stainless Steel, Fibreglass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 1720mm (approx. 5.64 ft)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1030g (approx. 2.27 lb)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e On-Mast\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose the Sirio SA-270MN?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNo tuning required — ready to install straight out of the box\u003c\/li\u003e\n\u003cli\u003eHigh 6.35 dBi UHF gain for strong 70cm base station performance\u003c\/li\u003e\n\u003cli\u003e200W rated — suitable for high-power transceivers and repeater use\u003c\/li\u003e\n\u003cli\u003eFull DC grounding on all metal parts for lightning and static protection\u003c\/li\u003e\n\u003cli\u003eMulti-system compatibility: HAM, TETRA, LoRa, SIGFOX, ORBCOMM M2M\u003c\/li\u003e\n\u003cli\u003ePremium fibreglass and stainless steel build for long-term outdoor durability\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SIRIO","offers":[{"title":"Default Title","offer_id":57518579220824,"sku":"MOON- 57-465","price":69.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/8753\/5192\/files\/sa270.png?v=1781531993","url":"https:\/\/kamsat.co.uk\/products\/sirio-sa-270-mn-dual-band-2m-70cm-bands-200w","provider":"Kamsat","version":"1.0","type":"link"}