{"product_id":"high-gain-450-512-mhz-low-profile-nmo-antenna-r3sgb-490-4-nmo","title":"High-Gain 450–512 MHz Low-Profile NMO Antenna | R3SGB-490-4-NMO","description":"\u003cp\u003eThe RFMAX R3SGB-490 is a high-gain, low-profile UHF antenna engineered for 450–512 MHz public safety and LMR radio systems. Featuring rugged IP67 construction, NMO mounting, and superior RF performance, it delivers reliable, mission-critical communication for police, fire, EMS, and demanding fleet applications. With up to 4.6 dBi peak gain, a 360° omnidirectional radiation pattern, and DC-grounded ESD protection, this antenna ensures optimal coverage, reduced noise, and long-term field durability. Its compact 3.5-inch form factor and wideband support make it ideal for modern radio deployments requiring maximum performance in a minimal footprint.\u003c\/p\u003e","brand":"RFMAX","offers":[{"title":"Default Title","offer_id":46003846119555,"sku":"R3SGB4904NMO","price":55.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0345\/4055\/2323\/files\/R3SGB-490-4-NMO.webp?v=1774364991","url":"https:\/\/www.arcantenna.com\/es\/products\/high-gain-450-512-mhz-low-profile-nmo-antenna-r3sgb-490-4-nmo","provider":"Arcadian - ArcAntenna.com","version":"1.0","type":"link"}