Garmin GSD 28 Sonar Module

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.

Overview

• 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 technology
• Greatly reduce wave and swell from bottom returns with heave compensation

Features

• 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.
• 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.
• SONAR POWER: GSD 28 can output 300 watts to 3 kW at extreme depths.
• 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 25 to 250 kHz frequency range.
• BUILT TO LAST: GSD 28 is rated for harsh marine environments and water-resistance with an IPX7 rating.

Specifications

• Case Material: Fully gasketed, aluminum housing, steel back panel, plastic access panel
• Water Rating: IPX7
• Frequencies Supported: Dual channel CHIRP: 25-250 kHz (tranducer dependant)
• Sonar Transmit Power: 300W–3kW rms (transducer dependant)
• Sonar Maximum Depth: 3,048 m (10,000 ft)
• Includes: GSD 28, Power cable, Garmin BlueNet™ marine network cable (1,8 m/6 ft) with legacy network adapter, Field installable adapter kit for the Garmin BlueNet network, Mounting hardware, and Documentation