{"product_id":"comet-gp-3n-144-430mhz","title":"Comet GP-3N Dual Band 2m \u0026 70cm Ham Base Antenna, 4.5dBi \/ 7.2dBi Gain, 200W SSB, 144\/430MHz","description":"\u003cp\u003eThe \u003cstrong\u003eComet GP-3N\u003c\/strong\u003e is a premium, dual-band fibreglass base station antenna for 2-metre (144 MHz) and 70cm (430 MHz) amateur radio use. With a gain of 4.5 dBi on 2m and 7.2 dBi on 70cm, and a maximum power rating of 200W SSB \/ 100W FM, it delivers excellent omnidirectional performance across both bands from a single antenna. The N-type connector ensures low-loss, weatherproof connectivity. A standout design feature is the \u003cstrong\u003eunique split-thread lock bolt\u003c\/strong\u003e that compresses when installed to prevent loosening — keeping your antenna secure even in high winds. The mounting tube doubles as a cable protector, shielding the feedline from the elements. Mounts on masts of 30–60mm diameter.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDual band: 2m (144 MHz) \u0026amp; 70cm (430 MHz)\u003c\/li\u003e\n\u003cli\u003eGain: 4.5 dBi (2m) \/ 7.2 dBi (70cm)\u003c\/li\u003e\n\u003cli\u003eMax power: 200W SSB \/ 100W FM\u003c\/li\u003e\n\u003cli\u003eVSWR: ≤1.5:1\u003c\/li\u003e\n\u003cli\u003eN-type connector for low-loss, weatherproof connection\u003c\/li\u003e\n\u003cli\u003eUnique split-thread lock bolt — prevents loosening in high winds\u003c\/li\u003e\n\u003cli\u003eMounting tube acts as cable protector against weather\u003c\/li\u003e\n\u003cli\u003eRugged fibreglass construction\u003c\/li\u003e\n\u003cli\u003eMast diameter: 30–60mm\u003c\/li\u003e\n\u003cli\u003eLength: 157cm\u003c\/li\u003e\n\u003cli\u003eMade by Comet (Japan)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eType: Dual band fibreglass base antenna\u003c\/li\u003e\n\u003cli\u003eFrequency: 144 MHz (2m) \u0026amp; 430 MHz (70cm)\u003c\/li\u003e\n\u003cli\u003eGain: 4.5 dBi (2m) \/ 7.2 dBi (70cm)\u003c\/li\u003e\n\u003cli\u003eVSWR: ≤1.5:1\u003c\/li\u003e\n\u003cli\u003eMax power: 200W SSB \/ 100W FM\u003c\/li\u003e\n\u003cli\u003eConnector: N-type\u003c\/li\u003e\n\u003cli\u003eLength: 157cm\u003c\/li\u003e\n\u003cli\u003eMast diameter: 30–60mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"COMET","offers":[{"title":"Default Title","offer_id":57374263640408,"sku":"MOON-48-487","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/8753\/5192\/files\/gp-3.png?v=1779810574","url":"https:\/\/kamsat.co.uk\/products\/comet-gp-3n-144-430mhz","provider":"Kamsat","version":"1.0","type":"link"}