Garmin GSD 28 Advanced Sonar Module for Deep-Water Fishing

GSD 28 Advanced Sonar Module

See whats down there. Catch whats down there. Take sport fishing to extreme depths with a high-powered sonar module with the features that are needed to improve the chances of success.

Features:

• 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

Garmin RapidReturn Sonar

This high-performance technology provides Garmin's fastest deep-water scrolling sonar with 2 to 6 times the ping rate of Garmin's 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 Garmin's 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 the 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 boats with existing bare wire transducers.

Performance

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.

In the Box:

• GSD 28


• Power cable


• Garmin BlueNet marine network cable (6 ft) with legacy network adapter


• Field-installable adapter kit for the Garmin BlueNet network


• Mounting hardware


• Documentation

Specifications

General:

• Case Material: Fully gasketed, aluminum housing, steel back panel, plastic access panel


• Physical Dimensions: 10.7" 14.4" 4.0" (27.06 cm 36.66 cm 10.1 cm)


• Weight: 14.13 lbs (6.4 kg)


• Water Rating: IPX7


• Temperature Range: 5 F to 158 F (from -15 C to 70 C)

Electrical Features:

• Power Input: 10-32 V


• Power Usage: 120 W maximum


• Fuse: 15A

Sonar Features:

• Frequencies Supported: Dual channel CHIRP: 25-250 kHz (transducer dependent)


• Transmit Power: 300W3kW RMS (transducer dependent)


• Maximum Depth: 10,000 ft. (3,048 m)


• xCHIRP: Yes


• Rapid Return: Yes

Connections:

• Garmin Marine Network Ports: (Garmin BlueNet)


• Sonar Connections: 2 bare wire

WARNING: This product can expose you to chemicals including NICKEL (METALLIC) which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.

Enhance your offshore sport fishing experience with the Garmin GSD 28 Advanced Sonar Module, designed to deliver clear and precise imaging in extreme depths. This high-performance sonar module supports dual-channel CHIRP technology, providing detailed fish targets and excellent target separation to identify bait and sport fish accurately. Its robust construction, rated IPX7 for water resistance, ensures durability in harsh marine environments, making it suitable for a variety of vessels. The GSD 28's powerful output of up to 3 kW at extreme depths allows anglers to explore waters up to 10,000 feet deep, providing a significant advantage when targeting deep-water species.

The Garmin RapidReturn technology offers the fastest deep-water scrolling sonar, with ping rates 2 to 6 times faster than previous models, enabling captains to react quickly to what lies beneath. Coupled with Garmin's xCHIRP technology, this module produces crisp, clear fish arches and smooth bottom returns, ensuring reliable detection even in challenging conditions. Heave compensation, when used with the optional MSC 10 external satellite compass, greatly reduces wave and swell interference, providing stable sonar displays during rough seas.

The GSD 28 is compatible with a wide range of Garmin and AIRMAR transducers, making it an ideal retrofitting choice for existing boats with bare wire transducers. It features a fully gasketed aluminum housing, ensuring durability and longevity in marine environments. The module connects via Garmin BlueNet marine network ports and supports two bare wire sonar connections, offering flexible integration options. Its operation range spans from 25 to 250 kHz, covering a broad spectrum suitable for various sonar applications. The GSD 28's design prioritizes reliability, with a 14.13-pound weight and dimensions that facilitate easy installation on many vessel types.

Included in the package are the GSD 28 sonar module, power cable, Garmin BlueNet marine network cable with legacy adapter, field-installable network adapter kit, mounting hardware, and comprehensive documentation. Built to withstand the demands of marine environments, the GSD 28 features a fully gasketed case and operates effectively across a wide temperature range. Whether you're fishing in shallow waters or exploring deep-sea environments, the Garmin GSD 28 delivers the advanced sonar capabilities needed to improve your success on the water.

Features:

• Engineered for offshore sport fishing with high power output and deep-water capabilities

• Garmin RapidReturn technology for fast, real-time sonar updates

• xCHIRP technology for clear fish arches and excellent target separation

• Heave compensation compatible with MSC 10 external satellite compass for rough seas

• Supports dual-channel CHIRP up to 3 kW per channel for detailed imaging

• Operates in a broad frequency range of 25 to 250 kHz for versatile applications

• Rated IPX7 for water resistance, suitable for harsh marine environments

• Compatible with a wide range of Garmin and AIRMAR transducers for flexible installation

• Robust aluminum housing designed for durability and longevity

• Includes necessary cables, mounting hardware, and documentation for installation