Garmin GA 38 Remote Antenna
Best external antenna for boaters needing reliable satellite signal reception.
Enhance your navigation with the Garmin GA 38 GPS/GLONASS Antenna. This external antenna is built to optimize reception from both GPS and GLONASS satellite systems. Its robust, low-profile design is waterproof and offers three flexible mounting options: pole, surface, or under-deck installation on fiberglass. Constructed from a durable, high-impact plastic alloy, it ensures reliable performance in various environments. The package includes a generous 32-foot cable, providing ample reach for optimal placement and signal acquisition.
$107.09
Owner Satisfaction
4.7
/ 5
Category Rank
28
/ 1314
#28 in Antennas
Price vs Category Average
-63%
Below average
Dimensions (D x H)
91.649.5
/ mm x mm
Who it's for
- Installers seeking versatile placement for optimal signal reception
- Navigators needing precise positioning in challenging environments
- Boaters requiring durable gear for harsh marine conditions
Who should skip it
- Users wanting a simple, non-permanent setup process
- Owners of non-Garmin systems seeking easy hardware integration
- Budget-conscious buyers satisfied with standard internal GPS performance
Performance breakdown
Signal Versatility
Dual GPS and GLONASS support ensures reliable positioning in challenging environments.
Installation Flexibility
Three distinct mounting options accommodate almost any boat or vehicle configuration.
Environmental Durability
IPX7 waterproofing and high-impact housing withstand harsh marine conditions with ease.
Cable Reach
The generous 32-foot cable provides ample length for optimal placement.
Thermal Resilience
Wide operating temperature range maintains performance in extreme heat or cold.
Form Factor
Low-profile design minimizes wind resistance and maintains a clean aesthetic.
Key Specs
Dimensions (D x H)
91.6 mm x 49.5 mm
Weight
201 g (7.1 oz)
Waterproof rating
IPX7
Operating Temperature Range
-30° C to 80° C
Cable Length
10.0 meters (32 ft)
Material
Fully gasketed, high-impact plastic alloy
Mounting Types
Pole, Surface, Under-deck
Antenna Type
External GPS/GLONASS
Features
- Supports both GPS and GLONASS satellites
- Low-profile, waterproof housing
- Three versatile mounting options included
- Potential for enhanced signal reception
- Durable high-impact plastic construction
- Includes a 32 ft antenna cable
What customers say
The Garmin GA 38 Remote Antenna is overwhelmingly viewed as a highly reliable and essential upgrade, especially where internal GPS signals fail, such as in marine or aviation settings. Customers consistently praise its exceptional ability to acquire and maintain a fast satellite lock, significantly improving signal stability and accuracy. Its robust, weatherproof construction ensures durability in harsh outdoor use. Installation is straightforward, supported by flexible mounting options and plug-and-play compatibility with various Garmin devices, minimizing setup frustration. Reviewers confirm this accessory effectively resolves signal dropout issues. While the cost is typical for specialized electronics, users feel the enhanced performance and peace of mind from continuous, accurate navigation data strongly justify the investment. It delivers on navigational reliability.
Know before you buy
Yes, the GA 38 is specifically designed to receive signals from both GPS and GLONASS satellite constellations, which helps improve your overall navigation accuracy.
Yes, the antenna supports under-deck mounting, provided the surface is made of fiberglass. This allows for a cleaner, hidden installation while maintaining signal reception.
Absolutely. It features an IPX7 waterproof rating and is constructed from a high-impact plastic alloy, making it fully capable of withstanding harsh marine environments and temperature extremes.
The package includes a 32-foot (10-meter) cable. While this is sufficient for most installations, adding extensions can sometimes degrade signal quality, so it is best to plan your mounting location to fit within this length.
The antenna comes with hardware for pole mounting, surface mounting, and under-deck mounting, giving you the flexibility to choose the best spot for your specific vessel or vehicle setup.
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$107