Garmin GSD™ 28 Advanced Sonar Module
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Garmin GSD™ 28 Advanced Sonar Module

SKU CD-101725
$2,999.99
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GARMIN GSD 28 SONAR MODULE

GSD™ 28 Advanced Sonar Module

See what’s down there. Catch what’s 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: 300W–3kW 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

WarningWARNING: 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.

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