Description
Garmin GSD™ 28 sonar module
THE DEEPS. REVEALED.
See what's down there. Catch what's down there. Take your sportfishing to extreme depths with a high-performance sonar module with the features you need to improve your chances.
DEVELOPED FOR SPORT FISHING ON THE OPEN SEAS
SEE SONAR FASTER WITH GARMIN RAPIDRETURN™ TECHNOLOGY
SHARP AND CLEAR FISH TARGETS WITH xCHIRP TECHNOLOGY
EXCELLENT TARGET SEPARATION WITH xCHIRP TECHNOLOGY 1
SIGNIFICANTLY REDUCE WAVES AND SWELLS FROM THE BOTTOM WITH HEAT COMPENSATION 2
GARMIN RAPIDRETURN SONAR
This high-performance technology provides our fastest deep-water sonar with 2 to 6 times the ping speed of our GSD™ 26 sonar. This allows captains to make quick, informed decisions based on what’s below their boats.
XCHIRP TECHNOLOGY
Easily distinguish bait from sport fish with our brightest traditional sonar fishing arcs and excellent target separation. Get consistent bottom returns and precise targeting at extreme depths 1 .
THE LIFT COMPENSATION
When the seas are rough, use our MSC™ 10 external satellite compass (sold separately) to greatly reduce waves and swells from your sonar returns.
COMPATIBILITY
TRANSDUCER SUPPORT
This sonar module is compatible with a wide range of Garmin and AIRMAR® transducers (sold separately).
RETROFITTING
The GSD 28 module is ideal for retrofitting on boats with existing transducers with uninsulated wires.
PERFORMANCE
SONAR POWER
The GSD 28 can deliver 300 watts to 3 kW at extreme depths 1 .
CHIRP SUPPORT
The module supports dual-channel CHIRP (up to 3 kW per channel).
OPERATING AREA
The GSD 28 sonar module can operate in the frequency range 25 to 250 kHz 1 .
DURABLE DESIGN
The GSD 28 is rated for harsh marine environments and has a waterproof rating of IPX7.
Features
| Security updates until at least (YYYY-MM-DD) | 2025-10-24 | ||||||||||||||||||||||||||||||||||||||
| Miscellaneous |
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In the box:
- GSD 28
- Power cable
- Garmin BlueNet™ Marine Network Cable (1.8m/6ft) with Legacy Network Adapter
- User-installable adapter kits for the Garmin BlueNet network
- Mounting equipment
- Documentation