There are three parts to any sonar system: display, sonar module, and transducer.

 

While you view and interact with the display, your sonar module generates and processes sonar signals. These signals are broadcast into the water column and their echoes received by one or more transducers, each designed to work with a specific sonar technology and frequency.

Built-in Sonar

Some Simrad multifunction displays include a built-in sonar module, allowing compatible transducers to be connected directly to the display.

External Modules

Displays without built-in sonar features require an external sonar module, such as the Simrad SonarHub™ Sounder Module or BSM-3 Broadband Sounder. These modules connect to your display by Ethernet, and provide ports for one or more transducers.

Sonar Technology By Multi-function Display


NSS7 evo2
NSS9 evo2
NSS12 evo2
NSS16 evo2

NSS7m evo2
NSS9m evo2
NSO evo2

GO7

Broadband Sonar

Built-in

SonarHub™ or
BSM-3 module required

Built-in

CHIRP Sonar

StructureScan® HD Imaging

SonarHub™ or
StructureScan® 3D
module required

Built in
(DownScan only)

ForwardScan® Sonar

SonarHub™ module
required

N/A

StructureScan® 3D Imaging

StructureScan® 3D module required

 N/A

 

Sonar Technology by Module

 

SonarHub™ Sounder Module

BSM-3 Broadband Sounder

StructureScan® 3D Module

Broadband Sonar

Yes

Yes

No

CHIRP Sonar

Yes

Yes (Dual-Channel)

No

StructureScan® HD Imaging

Yes

No

Yes

ForwardScan® Sonar

Yes

No

No

StructureScan® 3D Imaging

No

No

Yes

 

Next: Read about types of sonar