{"product_id":"garmin-0100284100-gmr-xhd3-radome-18-322-0100284100","title":"Garmin GMR™ xHD3 18\" Radar Dome","description":"\u003cp\u003eThe \u003cstrong\u003eGarmin GMR™ xHD3 18\" Radar Dome\u003c\/strong\u003e packs open-array-class performance into one of the most compact dome footprints available. With 4 kW of magnetron output, a 48-nautical-mile maximum range, and rotation speeds up to 60 RPM, it delivers high-definition target imaging and fast screen updates — plus Garmin’s Advanced Scan Averaging Technology, a first for magnetron dome radars, which actively filters sea clutter for a cleaner, more readable display.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 kW transmit power\u003c\/strong\u003e — strong returns at distance for confident coastal and offshore navigation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e48-nautical-mile maximum range\u003c\/strong\u003e — extended coverage well beyond typical dome radar performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Scan Averaging Technology\u003c\/strong\u003e — reduces sea clutter and interference for a cleaner display in rough conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUp to 60 RPM rotation speed\u003c\/strong\u003e — fast target updates suited to higher-speed vessels and busy waterways\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Range mode\u003c\/strong\u003e — simultaneously displays close-in and distant radar images in a split-screen view\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact 18\" dome\u003c\/strong\u003e — fits T-tops, arches, and mast locations where a 24\" dome won’t clear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet dome drive motor\u003c\/strong\u003e — low-noise operation suitable for helm stations and flybridge installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e18\" vs. 24\" — Which Size Is Right?\u003c\/h2\u003e\n\u003cp\u003eBoth dome sizes share the same xHD3 feature set and 48 NM range. The 18\" dome is the right choice when mounting space is limited or the vessel is under 35 ft. If your arch or mast can accommodate a larger antenna, the \u003ca href=\"\/products\/11131371028516\"\u003eGMR™ xHD3 24\" Radar Dome\u003c\/a\u003e offers improved bearing resolution thanks to its larger aperture.\u003c\/p\u003e\n\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/11131371028516\"\u003eGarmin GMR™ xHD3 24\" Radar Dome\u003c\/a\u003e — larger aperture for improved bearing resolution on vessels 35 ft and up\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/11131370012708\"\u003eGarmin Power Cable for GMR™ Radars, 48'\u003c\/a\u003e — required power cable for GMR dome installations\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/11131371094052\"\u003eGarmin GMR™ 18 HD3 Radar Dome\u003c\/a\u003e — entry-level HD3 dome, 36 NM range, lower price point\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/8252865413156\"\u003eGarmin GMR Fantom 18x Solid-State Doppler Radar Dome\u003c\/a\u003e — solid-state upgrade with Doppler colour motion alerts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eParts Desk Insights\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBest use case:\u003c\/strong\u003e The GMR™ xHD3 18\" is the top choice for boaters who want the full xHD3 feature set — Scan Averaging, 60 RPM, Dual-Range, 48 NM — but are working with a tight mounting location or a vessel under 35 ft. It’s a strong upgrade path from the \u003ca href=\"\/products\/11131371094052\"\u003eGMR™ 18 HD3\u003c\/a\u003e, adding Scan Averaging and a 12 NM range extension at a modest price step. Anglers running offshore in the 25–40 ft range will benefit most from the fast rotation and clutter rejection in following seas. Like all GMR domes, it connects to any compatible Garmin GPSMAP or echoMAP chartplotter via a single cable and supports dual-radar mode when paired with a compatible Garmin MFD. Boaters with available arch space on vessels 35 ft and up should consider the \u003ca href=\"\/products\/11131371028516\"\u003e24\" xHD3\u003c\/a\u003e for better bearing resolution.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51232999079972,"sku":"322-0100284100","price":2996.32,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/322-0100284300.jpg?v=1786151955","url":"https:\/\/marisolmarine.com\/products\/garmin-0100284100-gmr-xhd3-radome-18-322-0100284100","provider":"Marisol Marine Company","version":"1.0","type":"link"}