Garmin GA 38 GPS/GLONASS Antenna
Garmin GA 38 GPS/GLONASS Antenna — Product description
Enhance your marine navigation setup with the Garmin GA 38 external antenna, designed for boaters who demand reliable GPS and GLONASS positioning even in challenging environments. Whether you're navigating open waters, coastal routes, or crowded marinas, this compact antenna steps in to boost signal strength where built-in receivers might falter—think metal canopies, fiberglass hulls, or remote offshore spots.
Its sleek, low-profile design slips seamlessly into your vessel's layout, while rugged construction stands up to harsh saltwater conditions. Boaters often turn to it for crystal-clear satellite lock-ons during long hauls or when internal antennas lose their edge due to obstructions.
Flexible Installation Tailored to Your Boat
One size doesn't fit all on the water, which is why the GA 38 offers three straightforward mounting choices: pole for elevated positioning, surface for direct deck attachment, or under-deck for a hidden install beneath fiberglass layers. This adaptability means you can optimize placement for the best sky view without compromising your boat's aesthetics or deck space.
Picture mounting it high on a rail for unobstructed reception or tucking it under a hardtop to shield it from spray—installation is DIY-friendly with included hardware, letting you fine-tune performance based on your vessel's unique setup.
Built Tough for Marine Life
Crafted from high-impact plastic alloy with full gasketing, the GA 38 laughs off submersion thanks to its IPX7 waterproof rating—surviving accidental dunks up to a meter deep for 30 minutes. It thrives in extreme temps from -22°F to 176°F, handling everything from frosty dawn patrols to scorching midday sun.
By tapping into both GPS and GLONASS satellite networks, it doubles your positional data sources for faster fixes and greater accuracy, especially in high-latitude regions where GLONASS shines. Users report noticeably quicker startups and fewer dropouts compared to relying solely on internal antennas.
Everything You Need for Quick Setup
- The GA 38 antenna itself, ready for action.
- Surface mounting bracket for flat installs.
- Pole mounting bracket for raised vantage points.
- Under-deck mounting bracket for concealed fiberglass mounting.
- Complete mounting hardware kit.
- Generous 32-foot (10-meter) antenna cable for flexible routing.
- Clear installation instructions to get you underway fast.
This all-in-one package minimizes trips to the hardware store, so you spend less time wrenching and more time on the water.
Key Specifications at a Glance
- Dimensions: 3-19/32 inches diameter x 1-15/18 inches height (91.6 mm x 49.5 mm)—ultra-compact footprint.
- Weight: Just 7.1 oz (201 g), featherlight for easy handling.
- Color: Clean white finish blends with most marine gear.
- Temperature Range: -22°F to 176°F (-30°C to 80°C).
- Material: Fully gasketed high-impact plastic alloy.
- Waterproofing: IPX7 rated for worry-free marine use.
Long-Lasting Performance Tips
To keep your GA 38 performing at peak, rinse it with fresh water after saltwater exposure and inspect cable connections seasonally. Avoid tight cable bends that could stress the shielding, and secure mounts firmly against vibration from rough seas. With proper care, it delivers years of dependable service, backed by Garmin's limited one-year warranty.
Frequently Asked Questions
What makes the Garmin GA 38 different from built-in GPS antennas?
The GA 38 is an external unit optimized for superior signal reception in obstructed areas, supporting both GPS and GLONASS for more satellites and faster locks, unlike many internal antennas limited to GPS alone.
Can I mount the GA 38 under a fiberglass deck?
Yes, the included under-deck bracket makes it perfect for mounting beneath fiberglass without drilling through the deck, preserving your boat's integrity while capturing strong signals.
Is the GA 38 suitable for saltwater boating?
Absolutely—its IPX7 waterproof rating and corrosion-resistant materials handle saltwater splashes, submersion, and UV exposure with ease.
How long is the cable on the GA 38 antenna?
It comes with a 32-foot (10-meter) cable, providing ample length to route from remote mounting spots to your chartplotter without signal loss.
What temperature range does the GA 38 handle?
It operates reliably from -22°F to 176°F (-30°C to 80°C), covering extreme cold snaps to intense summer heat on the water.
Does it work with all Garmin marine devices?
It's compatible with most Garmin chartplotters and multifunction displays that support external GPS/GLONASS antennas—check your model's specs for seamless integration.
Built to take advantage of the GLONASS system and constellation of satellites as well as standard GPS, this robust external antenna is packaged in a low-profile water resistant housing and provides 3 easy mounting solutions: pole, surface or under-deck. External GPS and GLONASS antennas provide increased flexibility and installation options as well as the potential for enhanced reception of GPS and GLONASS signal for those products with built-in GPS and GLONASS antennas.
Garmin 101201700 Attributes
- Mounting Location: Pole/ Surface/ Under-Deck Mount
- Color: White
- Temperature Range: -22 Degree Fahrenheit To 176 Degree Fahrenheit
- Dimensions: 3-19/32 Inch Diameter x 1-15/18 Inch Height
- Material: Plastic
- Waterproof Rating: IPX7 Waterproof Rating
- Includes: Pole Mounting Bracket/ Surface Mounting Bracket/ Under Deck Mounting Bracket/ Mounting Hardware
Garmin 101201700 Features & Benefits
- Low-Profile Water Resistant Housing
- Provides 3 Easy Mounting Solutions
- Antennas Provide Increased Flexibility
- Fully Gasketed, High-Impact Plastic Alloy; Waterproof To IPX7
- Limited 1 Year Warranty
Garmin 101201700 Warranties
GA 38 GPS/GLONASS Antenna
Built to take advantage of the GLONASS system/constellation of satellites as well as standard GPS, this robust external antenna is packaged in a low-profile waterproof housing and provides 3 easy mounting solutions: pole, surface or under-deck (for the underside of fiberglass decks).
External GPS/GLONASS antennas provide increased flexibility and installation options as well as the potential for enhanced reception of GPS/GLONASS signal for those products with built-in GPS/GLONASS antennas.
In the Box
- GA 38
- Surface mounting bracket
- Pole mounting bracket
- Under-deck mounting bracket
- Mounting hardware
- Antenna cable (32 ft/10 m)
- Installation instructions
General Specifications
- Dimensions (DxH): 3 19/32" x 1 15/18" (91.6 mm x 49.5 mm)
- Weight: 7.1 oz (201 g)
- Temperature range: -22° F to 176° F (-30° C to 80° C)
- Case material: Fully gasketed, high-impact plastic alloy, waterproof to IPX7
Designed to utilize the GLONASS system/satellite constellation and standard GPS, this rugged external antenna is enclosed in a low, waterproof housing.
SKU: NVN-51176
MPN: 010-12017-00
UPC: 753759008482
Technical specifications
| Brand | Garmin |
| Model | Garmin GA 38 GPS/GLONASS Antenna |
| SKU / MFR# | 51176 |
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Frequently asked questions
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