Description
The Depths. Revealed.
See what’s down there. Catch what’s down there. Take your sport fishing to extreme depths with a high-powered sonar module with the features you need to improve your chances for success.
- Engineered for offshore sport fishing.
- See sonar faster with Garmin RapidReturn™ technology.
- Crisp and clear fish targets with xCHIRP technology.
- Excellent target separation with xCHIRP technology1.
- Greatly reduce wave and swell from bottom returns with heave compensation2.
What you’ll love
Garmin RapidReturn sonar – This high-performance technology provides our fastest deep-water scrolling sonar with 2 to 6 times the ping rate1 of our GSD™ 26 sonar. This allows captains to make fast and informed decisions based on what is below their boats.
xCHIRP technology – Easily distinguish bait from sport fish with our clearest traditional sonar fish arches and excellent target separation. Get smooth bottom returns and precise targeting at extreme depths1.
Heave compensation – When the seas get rough, use the MSC™ 10 external satellite compass (sold separately) to greatly reduce wave and swell from your sonar returns.
Supercharged sonar 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 to boats with existing bare wire transducers.
Performance
- Sonar power – GSD 28 can output 300 watts to 3 kW at extreme depths1.
- CHIRP support – The module supports dual-channel CHIRP (up to 3 kW per channel).
- Operation range – The GSD 28 sonar module can operate in the 33 to 250 kHz frequency range1.
- Built to last – GSD 28 is rated for harsh marine environments and water-resistance with an IPX7 rating.


Reviews
There are no reviews yet.