Take sportfishing to extreme depths with the new GSD 28 from Garmin

Powered by RapidReturn sonar with next-gen xCHIRP technology, the GSD 28 provides Garmin’s clearest and most detailed fish arch returns

OLATHE, Kan./Oct. 24, 2023/PR Newswire – Garmin (NYSE: GRMN), the world’s most innovative and recognised marine electronics manufacturer, today announced the GSDÔ 28, a high-powered sonar module engineered for serious sportfishing. Featuring Garmin RapidReturnsonar, the GSD 28 provides more sonar data on the multi-function display with up to 6 times the transmit rate of its predecessor so anglers can see more detail than ever before. And thanks to Garmin’s new xCHIRP sonar technology, the GSD 28 provides higher resolution with excellent target separation and bottom discrimination to help anglers easily distinguish bottom features from bait or sport fish.

See the difference below the surface with RapidReturn sonar

“Garmin’s digital sonar modules have been trusted for off-shore, high-powered sonar by anglers for nearly two decades, and the GSD 28 adds new and innovative features to set the standard once again for saltwater sportfishing. Our RapidReturn and xCHIRP technologies combine to provide deep-sea anglers crisper, clearer and more sonar returns in deeper waters, which can be the difference between finding and missing your targets.” –Dan Bartel, Garmin Vice President of Global Consumer Sales

The depths revealed

Garmin’s RapidReturn sonar sends multiple sonar signals through the water column simultaneously, which results in much more sonar information to quickly see on the multi-function display. This allows anglers to view fresher, more relevant sonar returns and see more detail of what’s below the boat. The xCHIRP sonar technology provides crisp, clear fish arches with excellent target separation.

The GSD 28 supports dual-channel (1-3 kW) CHIRP covering a broad frequency range between 25-250 kHz, which helps create a more detailed picture of what’s below, including fish on the ocean bottom and objects in the water column. 

Robust design

Optimised for sportfishing, the GSD 28 is designed to withstand harsh marine environments, including high winds, rain and sunlight, and is water-resistant with an IPX7 rating. When the waters get rough, the RapidReturn sonar can be paired to the optional MSC10 external satellite compass (sold separately) to ensure that wave and swell sea conditions don’t interfere with the sonar returns through heave compensation.

The versatile GSD 28 is compatible with a wide range of Garmin and AIRMAR® transducers that can be manually or automatically configured, giving the user extraordinary flexibility when configuring their sonar screen. It’s compatible with the new GPSMAPâ 9000 series, along with the GPSMAP 8600/8600xsv, GPSMAP 7×3/9×3/12×3 and GPSMAP 10×2/12×2 series chartplotters.

Available now, the GSD 28 has a recommended retail price of $3,999.00 Learn more about Garmin’s full line of marine electronics by visiting garmin.com/marine.

Engineered on the inside for life on the outside, Garmin products have revolutionised life for anglers, sailors, mariners and boat enthusiasts everywhere. Committed to developing the most innovative, highest quality, and easiest-to-use marine electronics the industry has ever known, Garmin believes every day is an opportunity to innovate and a chance to beat yesterday. For the eighth consecutive year, Garmin was named the Manufacturer of the Year by the National Marine Electronics Association (NMEA). Other Garmin marine brands include Navionics®. Visit the Garmin Newsroom, email our media team, connect with @garminmarine on social, or follow our blog.


About Garmin International, Inc. Garmin International, Inc. is a subsidiary of Garmin Ltd. (NYSE: GRMN). Garmin Ltd. is incorporated in Switzerland, and its principal subsidiaries are located in the United States, Taiwan and the United Kingdom. Garmin and GPSMAP are registered trademarks and RapidReturn, GSD and MSC are trademarks of Garmin, Ltd. or its subsidiaries. All other brands, product names, company names, trademarks and service marks are the properties of their respective owners. All rights reserved.

Notice on Forward-Looking Statements:

This release includes forward-looking statements regarding Garmin Ltd. and its business. Such statements are based on management’s current expectations. The forward-looking events and circumstances discussed in this release may not occur and actual results could differ materially as a result of known and unknown risk factors and uncertainties affecting Garmin, including, but not limited to, the risk factors listed in the Annual Report on Form 10-K for the year ended December 31, 2022, filed by Garmin with the Securities and Exchange Commission (Commission file number 0001-411180). A copy of such Form 10-K is available at https://www.garmin.com/en-US/investors/. No forward-looking statement can be guaranteed. Forward-looking statements speak only as of the date on which they are made and Garmin undertakes no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events, or otherwise.

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