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.
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 depths.
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.
Garmin GSD™ 28 Sonar Module
General
Case material Fully gasketed, aluminum housing, steel back panel, plastic access panel Physical dimensions 27.06 cm x 36.66 cm x 10.01 cm (10.7″ x 14.4″ x 4″) Weight 6.4 kg (14.13 lbs) Water rating IPX7 Temperature range From -15° C to 70° C (from 5° F to 158° F) Electrical Features
Power input 10-32 V Power Usage 120 W maximum Fuse 15 A Sonar features
Frequencies supported Dual channel CHIRP: 25-250 kHz (tranducer dependant) Transmit power 300W–3kW rms (transducer dependant) Maximum depth 3,048 m (10,000 ft) xCHIRP Yes Rapid return Yes Connections
Garmin Marine Network ports 1 (Garmin BlueNet) Sonar connections 2 bare wire
