Imagine scanning the ocean floor at extreme depths, spotting massive schools of tuna or wrecks hidden in the abyss, all with crystal-clear returns that cut through thermoclines like a hot knife. That’s the everyday reality for serious offshore anglers and commercial operators using the Furuno CA28F-38M rubber-coated transducer. This powerhouse isn’t just gear—it’s your edge in the deep blue, delivering reliable performance where lesser units falter.
Built for vessels pushing limits, its low 28kHz frequency punches through water columns up to thousands of feet, revealing structure and fish that higher frequencies miss. The rugged rubber housing shrugs off impacts, corrosion, and harsh marine environments, making it a go-to for working boats and weekend warriors alike.
Unlock Superior Deep-Water Detection
The magic lies in that 14-degree beam width. At shallow ranges, it paints a broad picture of the bottom; drop deeper, and it maintains exceptional target resolution without the narrow tunnel vision of tighter beams. Paired with 5kW of raw power, echoes bounce back stronger and sharper, even in rough seas or heavy clutter.
Deep Penetration: 28kHz excels in saltwater, ignoring surface noise and biomass interference common in productive fishing grounds.
Wide Coverage: Spot schools spreading across vast areas without constant repositioning.
High Resolution: Distinguish bait balls from big game fish with ease.
Recreational skippers love it for tournament fishing, while pros rely on it for trawling ops—versatile enough for monohulls, catamarans, or even larger commercial hulls.
Effortless Installation for Real-World Use
No hull drilling required. Chest or tank mounting keeps your vessel’s integrity intact, ideal for aluminum or fiberglass hulls where thru-hull penetrations aren’t feasible. Bolt it securely in a dedicated tank for protected, vibration-free operation, or chest-mount forward for optimal water flow.
Pro tip: Position it ahead of props and keels to minimize air entrainment. The 49-foot bare-wire cable gives flexibility for routing to your Furuno sounder, and since it’s connectorless, customize terminations to match your setup perfectly.
Built to Withstand the Elements
Weighing in at 44 pounds, this beast demands respect but rewards with unmatched toughness. The rubber coating acts as a shock absorber against groundings or dock bumps, while sealing out moisture for years of service. Expect seamless integration with Furuno’s DRS series or TZtouch systems, amplifying your chartplotter’s sonar capabilities.
Maintenance is straightforward: Periodic hull cleaning prevents marine growth from dulling performance. Rinse after saltwater exposure, and you’re set. Backed by a solid warranty, it’s engineered for longevity in demanding conditions.
Key Specifications at a Glance
Attribute
Details
Power Rating
5kW
Frequency
28kHz
Beam Angle
14 degrees
Mounting
Chest or Tank
Cable Length
49.2 feet (15m), bare wire
Weight
44 lbs
Frequently Asked Questions
What frequency does the Furuno CA28F-38M operate at?
It operates at 28kHz, optimized for deep-water penetration and bottom tracking in offshore environments.
What are the mounting options for this transducer?
Designed for chest or tank mounting, perfect for boats avoiding thru-hull installations.
How long is the cable on the CA28F-38M?
The cable measures 49.2 feet (15 meters) and comes as bare wire for custom connections.
What is the beam width of this 5kW transducer?
It features a 14-degree beam angle, providing wide coverage with solid target separation at depth.
How much does the Furuno CA28F-38M weigh?
It weighs 44 pounds, built sturdy for marine rigors.
Does this transducer come with a connector?
No, it has bare wires, allowing tailored integration with your Furuno electronics.
What types of boats is it best suited for?
Ideal for offshore fishing boats, commercial trawlers, and sportfishers needing deep sonar performance.
