{"product_id":"sea-dog-ss-fixed-antenna-base-4-in-329510-1","title":"Sea-Dog Stainless Steel Fixed Antenna Base – 4\" H x 2-7\/8\" Base | SED-329510-1","description":"\u003ch2\u003eSea-Dog Stainless Steel Fixed Antenna Base – 4\" H x 2-7\/8\" Base\u003c\/h2\u003e\u003cp\u003eA solid, permanent deck mount for VHF, AIS, GPS, and other standard marine antennas. This all-stainless steel fixed antenna base from Sea-Dog stands 4\" tall with a wide 2-7\/8\" base footprint — providing a stable, low-vibration platform that resists the flex and wobble common on narrower bases, especially on planing hulls at speed.\u003c\/p\u003e\u003cp\u003eThe built-in wire feed-through routes your coax cable directly through the base for a clean, professional installation with no exposed cable on deck. The standard 1\"-14 thread accepts the vast majority of marine antennas, and the wide base distributes load across a larger mounting footprint for a more secure hold on fiberglass and composite decks.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAll stainless steel construction – corrosion-resistant for marine use\u003c\/li\u003e\n\u003cli\u003e4\" height with 2-7\/8\" base diameter – wide, stable footprint\u003c\/li\u003e\n\u003cli\u003eBuilt-in wire feed-through – clean coax routing below deck\u003c\/li\u003e\n\u003cli\u003eStandard 1\"-14 thread – fits most marine antennas\u003c\/li\u003e\n\u003cli\u003eReduced antenna flex and vibration at speed\u003c\/li\u003e\n\u003cli\u003eMPN: 329510-1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eBest Use Case:\u003c\/strong\u003e This base is the right choice when stability matters — on faster planing hulls, sportfishers, and center consoles where vibration and antenna wobble at speed are a concern. The wider 2-7\/8\" base spreads the load and reduces the lever arm effect that causes narrower bases to flex under a tall antenna. It's also a good fit for larger, heavier antennas where a narrow base would be undersized. For a lower-profile option with the same wire feed-through design, see the \u003ca href=\"\/products\/sea-dog-304-ss-fixed-flange-antenna-base-1-5-in\"\u003eSea-Dog Fixed Flange Antenna Base – 1-1\/2\"\u003c\/a\u003e or the \u003ca href=\"\/products\/sea-dog-304-ss-fixed-flange-antenna-base-4-5-in\"\u003eSea-Dog Fixed Flange Antenna Base – 4-1\/2\"\u003c\/a\u003e. To raise the antenna further above deck, pair with a \u003ca href=\"\/products\/sea-dog-316-ss-antenna-mount-extension-12-in-329532\"\u003eSea-Dog 316 SS Antenna Mount Extension – 12\"\u003c\/a\u003e or the \u003ca href=\"\/products\/sea-dog-316-ss-antenna-mount-extension-24-in\"\u003eSea-Dog 316 SS Antenna Mount Extension – 24\"\u003c\/a\u003e. For rail or arch mounting without deck penetration, see the \u003ca href=\"\/products\/sea-dog-316-ss-tube-mount-antenna-base-1-in-od\"\u003eSea-Dog 316 SS Tube Mount Antenna Base\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e The 2-7\/8\" base requires a larger mounting footprint than standard flange bases. Confirm you have adequate flat deck space and access below for the coax feed-through before ordering.\u003c\/p\u003e","brand":"WEST","offers":[{"title":"Default Title","offer_id":43943888781348,"sku":"SED-329510-1","price":63.78,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/e2b2f764-983f-4e10-b4da-f3da56e9b99c.png?v=1784166121","url":"https:\/\/marisolmarine.com\/products\/sea-dog-ss-fixed-antenna-base-4-in-329510-1","provider":"Marisol Marine Company","version":"1.0","type":"link"}