Simrad BSM-1 Broadband Sounder
Best deep-water sonar module for serious offshore anglers.
Experience unparalleled underwater clarity with the Simrad BSM-1 Broadband Sounder module. Engineered for superior echosounder imagery, it uses a low-power, adaptable signal for exceptional target detection and deep water penetration up to 3000 feet. This fully waterproof unit clearly defines underwater structures and operates quietly. Featuring Tri-Frequency capability and Ethernet connectivity, it seamlessly integrates with major marine electronics brands, enhancing your fishing expeditions with precise and reliable sonar data.
$249.95
Owner Satisfaction
4.5
/ 5
Category Rank
88
/ 167
#88 in Fish Finders
Price vs Category Average
-76%
Below average
Model Number
1
/ BSM-
Who it's for
- Anglers needing precise separation between fish and underwater structure
- Offshore fishermen requiring consistent depth readings in deeper waters
- Boat owners using existing Simrad NSS, NSE, or NSO displays
Who should skip it
- Tech-focused anglers demanding the superior resolution of modern CHIRP systems
- Captains with limited console space for additional black box hardware
- Users prioritizing the fastest possible display refresh rates for navigation
Performance breakdown
Deep water performance
Reliable target detection reaches depths of up to 3000 feet.
Target separation
Broadband technology provides exceptional clarity for distinguishing fish from structure.
System integration
Ethernet connectivity ensures seamless communication with your existing marine electronics suite.
Signal noise reduction
Whisper signal operation minimizes interference for a cleaner, quieter display.
Build durability
Rugged, fully waterproof housing stands up to harsh offshore marine environments.
Frequency versatility
Tri-frequency capability offers adaptable scanning options for various fishing conditions.
Key Specs
Model Number
BSM-1
Part Number
000-0132-05
Maximum Depth Penetration
3000 feet
Maximum Depth Penetration
1000 meters
Connectivity
Ethernet
Sonar Type
Broadband Sounder
Sonar Technology
Chirp
Frequency Capability
Tri-Frequency
Features
- Superior clarity and echosounder imagery
- Deep water penetration up to 3000 feet
- Adaptable pulse for optimization
- Extremely sensitive receiver
- Clearly defines underwater structure
- Quiet 'Whisper' signal operation
- Fully waterproof marine design
- Ethernet connectivity
What customers say
Anglers highly value the Simrad BSM 1 for its superior sonar quality and dependable performance, particularly in deep water. Users consistently note a significant enhancement in target separation and bottom detail over basic sounders. This module is seen as an essential upgrade for serious fishermen demanding clarity. Although initial setup demands some technical skill, the consistent output and ease of operation confirm its status as a highly regarded piece of marine electronics, reliably delivering professional grade results.
Know before you buy
The BSM-1 is capable of deep-water penetration up to 3,000 feet (1,000 meters), making it suitable for both coastal fishing and deeper offshore excursions.
Yes, the BSM-1 uses Ethernet connectivity, allowing it to integrate seamlessly with most major marine electronics displays. This enables you to view sonar data directly on your existing compatible chartplotter or multifunction display.
The 'Whisper' signal operation reduces electrical noise and interference, resulting in a cleaner, clearer image on your screen. This allows you to distinguish between fish and underwater structures more easily than with standard sonar pulses.
Absolutely. The unit is built with a fully waterproof design, ensuring it can withstand the moisture and spray typical of a marine environment without compromising performance.
Tri-Frequency capability provides you with flexibility in how you view the water column. By switching between frequencies, you can optimize your display for different depths and target types, ensuring you get the most accurate data regardless of your fishing conditions.
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$250