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Installing a marine GPS antenna cleanly and securely is crucial for reliable navigation on the water. The Garmin under deck mount offers a smart solution for boaters who want to keep their GPS 17x receiver or antenna hidden beneath a fiberglass surface. This white plastic mount blends seamlessly with most vessels, preserving the sleek lines of your deck while ensuring optimal signal reception without surface penetration.
Designed specifically for marine environments, this mount eliminates the need for bulky above-deck hardware. It positions your antenna precisely under fiberglass hulls or decks up to a certain thickness, minimizing signal loss and maximizing GPS accuracy during long offshore trips or coastal cruising. Unlike traditional mounts that require drilling through the deck, this option maintains waterproof integrity and reduces maintenance hassles.
This mount pairs effortlessly with Garmin's GPS 17x antennas, commonly used in popular chartplotter models favored by serious anglers and cruisers. Before installation, confirm your fiberglass thickness falls within the recommended range—typically up to 1.5 inches for best performance. Here's a quick guide to get you up and running:
Pro tip: Pair it with marine sealant around cable entries for extra protection in high-moisture zones like the bow or transom.
Imagine heading out for a weekend fishing charter without worrying about antenna wobble or water intrusion. Sportfishermen appreciate how it keeps gear out of the way during tournaments, while sailboat owners love the low-profile design that doesn't interfere with sheets or winches. It's a game-changer for retrofitting older vessels too—breathe new life into your electronics setup without major deck modifications.
Compared to flush mounts or pole setups, this under-deck option shines in preserving resale value and daily usability. Boaters report fewer corrosion issues and consistent heading data, critical for autopilot integration and waypoint navigation.
To keep your mount performing like new, rinse with fresh water after every saltwater outing. Inspect mounting screws annually for tightness, especially in high-vibration applications like center consoles. This simple routine extends reliability, letting you focus on what matters: exploring new waters with confidence.
It's ideal for fiberglass boats like center consoles, sportfishers, and sailboats where maintaining a clean deck is key. Works on hulls or decks up to typical marine fiberglass thicknesses.
No, when installed correctly under non-metallic fiberglass, it preserves excellent satellite reception for the GPS 17x antenna, even in open water.
Yes, most users complete it in under an hour with basic tools. Just ensure proper alignment and cable routing for best results.
Absolutely. The plastic material is engineered for marine durability, resisting corrosion, impacts, and vibrations from waves or motors.
Primarily optimized for GPS 17x receivers/antennas, but check Garmin's compatibility charts for similar marine GPS units.
Rinse with fresh water after use, dry thoroughly, and inspect hardware seasonally. Avoid harsh chemicals to preserve the finish.
It offers a sleeker look, better protection from damage, and no deck holes, making it perfect for aesthetics and longevity.
Garmin make products that are engineered on the inside for life on the outside. We bring GPS navigation and wearable technology to the automotive, aviation, marine, outdoor and fitness markets. We believe every day is an opportunity to innovate and a chance to beat yesterday. We offer products with essential utility, leading-edge technologies, compelling features, and exceptional ease-of-use to create clear differentiators our customers appreciate and desire.
Antenna Under Deck Mount
Mount your antenna under a fiberglass surface with this under deck mount.
Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
US$40
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