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Simrad BSM-3 Broadband Sounder Module

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Product Description


Broadband Sounder Module (BSM-3) Designed for professionals and sportfishing enthusiasts, the Simrad BSM‐3 is a high performance, dual channel broadband sounder with CHIRP technology. Venture further offshore, with the confidence to find the fish you’re looking for.

Designed for professionals and sportfishing enthusiasts, the BSM‐3 is a high performance, dual‐channel broadband sounder with CHIRP technology. The BSM‐3’s extensive transducer compatibility and highly customizable user interface mean you can venture further offshore, with the confidence to find the fish you’re looking for. Purpose built to last, the BSM‐3 features rugged all‐aluminum housing. New transducer connectors make installation and service easier than ever, with no need to open the case or wire anything by hand when using newer Airmar transducers. The BSM‐3 is optimized for use with Airmar’s latest wide‐angle CHIRP transducer series, and perfectly suited for pelagic trolling and other deep‐water fishing applications.

  • Dual Channel CHIRP: Choose your frequency range for the type of fishing and species you target.
  • Industry‐leading target separation and clarity: Makes the echosounder image easier to interpret.
  • Easy to Install: Transducer connectors on housing minimize installation complexity.
  • Easy to Use: Automatic settings optimized for everyday performance; manual settings for finer tuning.
  • Compatible with Wide Angle Transducers: Wider cone angles means greater coverage of the water column.
  • Ultra‐Low, Low, Medium, or High Frequencies: To help you target your favorite species.

The BSM‐3 is optimized for the new Simrad HEROiC user interface, and is fully compatible with Simrad Yachting's range of multi-function displays*. With the HEROiC interface, users can immediately see how their adjustments will affect the sonar image. This makes finding settings to best suit a user’s sportfishing needs faster and easier than ever before. * The BSM‐3 is compatible with Simrad NSS, NSS evo2, NSE, NSO, and NSO evo2 series, with latest software updates installed. Some UI features unavailable on NSE and NSO Offshore models.


Compliance and Environmental

Compliance CE, C-TICK
Technical Standards IEC 60945,IEC 60529
Waterproof IPX5
Humidity Up to 95% at 35°C non-condensing
Storage Temperature –30°C to +70°C
Operating Temperature –15°C to +55°C


Connectors 1 Power, 2x seven pin blue, 1 x Ethernet, 3 x Glands
Weight 4.8 kg (10.6 lbs)
Dimensions (WxHxD) 340x100x289 mm|(13.38x3.94x11.37 inches)
Mounting 4 keyholed mounting tabs

Power requirements

Power Consumption Range dependent – normally less than 10W
Voltage 10.7–32 VDC (for 12 or 24 VDC systems)

Sonar Specifications

Power Output 250 Watts RMS 2,000 Watts (peak to peak)


Broadband Frequencies Transceiver High 130- 210Khz; 85-145Khz
Broadband Frequencies Transceiver Low 40-60Khz; 25-45Khz
Narrowband Frequencies Transceiver High 200Khz; 83Khz
Narrowband Frequencies Transceiver Low 50Khz; 38Khz; 28Khz
Transmitter and Receiver Type Dual Broadband Tuned receivers, Dual Tuned CHIRP Transmitters
Pulse Length Range Dependent - to 70ms max
Max. transmit rate Range dependent – to 20Hz in shallow depths. User selectable.
Range scales 5, 8, 10, 15, 20, 30, 40, 60, 80,100,120, 150, 200, 250, 300, 400, 500, 600, 700, 800, 900, 1000, 1500, 2000, 4000, 6000, 8000, 10,000, 12,000, 15,000

NOTE: all numbers above in ft. Can be changed to metrics in NSE/NSO/NSS unit.

Range control Auto/manual range with zoom, alternating dual frequency display with CHIRP, simultaneous with narrowband
Zoom size Auto/manual x2, x3, x4, x5, x6, x7, x8 (user selectable)


Network Ethernet 10/100


  • BSM-3 Module
  • Ethernet cable yellow 5 Pin 15' (4.5m)
  • Power cable 6.5' (2m)
  • Manual

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