B75H BB TH angled 12 deg

The Raymarine B75H BB TH 12° angled fishfinder transducer is a depth sounder transducer designed to provide highly detailed high-frequency CHIRP detection. It enables improved target discrimination, enhanced fish separation, and precise seabed mapping, particularly useful for sport fishing and navigation in mid-depth to shallow waters.

The B75H transducer uses a high CHIRP frequency band, typically between 130 kHz and 210 kHz. This frequency range is ideal for achieving fine detail resolution and excellent target separation.

CHIRP (Compressed High-Intensity Radiated Pulse) technology offers several significant advantages:

Higher resolution: It allows clearer distinction between individual fish and bottom structures.Improved target discrimination: It helps differentiate fish from algae or other debris.Deeper detection: While this model operates at high frequency, CHIRP technology enhances detection capability compared to fixed-frequency sounders.Less noise: It provides clearer images with fewer interferences.

The « BB » designation stands for « Broadband ». This indicates that the transducer is CHIRP-compatible, capable of transmitting across a wide frequency range rather than a fixed frequency, which is essential for CHIRP performance.

Choosing an 'H' (High frequency) transducer like the B75H is beneficial for:

Resolution and detail: It provides superior image resolution and better target separation, ideal for identifying individual fish or fine structures.Shallow to mid-depth waters: It excels in depths under 100–150 meters where detail is critical.Mid-frequency ('M') transducers are a good compromise for varied depths, while 'L' (Low frequency) transducers are preferable for very deep waters and bottom penetration.

No, the Raymarine B75H BB TH transducer is '12° faired'. This means it has a built-in 12° angled element designed to compensate for the hull’s deadrise angle. It does not require an external fairing block and offers a flush-mounted installation.

The B75H BB TH transducer is constructed from bronze. This material is selected for its robustness and exceptional durability in marine environments, providing excellent resistance to corrosion.

The B75H transducer, operating at high-frequency CHIRP, can detect depths up to approximately 240 meters (800 feet) in ideal conditions. However, it excels particularly in depths under 100–150 meters, where it provides exceptional detail and resolution for fish detection and seabed analysis.

Yes, absolutely. Thanks to its high-frequency CHIRP technology, the B75H transducer delivers superior resolution and target separation. This allows users to more easily distinguish individual fish, even within schools, and differentiate them from underwater structures.

A 'tilted element 12°' (or tilted element) transducer means the transducer element inside the housing is tilted at 12 degrees. This tilt is designed to compensate for the hull deadrise angle of your boat's hull, allowing the sonar beam to be directed vertically toward the seabed without requiring an external fairing block. This ensures a flush-mounted installation and optimal performance.

The Raymarine B75H BB TH transducer is primarily designed and optimized for marine environments (saltwater) due to its bronze construction and high-frequency CHIRP performance characteristics. However, it can also be used in freshwater, offering the same high-frequency CHIRP detection benefits.

The beam angle of the B75H transducer typically ranges from 15 to 9 degrees across its high CHIRP frequency range (130–210 kHz). The beam angle narrows as frequency increases, providing a tighter beam for improved resolution at higher frequencies.

The B75H transducer is compatible with Raymarine multifunction displays (MFD) featuring CHIRP sonar technology. This typically includes the Axiom, Axiom+, Axiom Pro, and Element series, as well as the eS and gS series when paired with the appropriate CHIRP sounder module (such as the CP470 or CP570).

Whether an external fishfinder module is needed depends on the Raymarine multifunction display model you own. Some modern MFDs, such as the Axiom series, already include an integrated CHIRP fishfinder module. Older MFDs or systems will require an external CHIRP fishfinder module, such as the Raymarine CP470 or CP570, to operate with the B75H transducer.

No, the Raymarine B75H BB TH transducer is a CHIRP Broadband (BB) high-frequency transducer. It is specifically designed to operate with CHIRP-compatible fishfinder systems to fully leverage its wide-band frequency scanning capabilities. It will not function correctly, or at all, with traditional fixed-frequency fishfinder systems.

The B75H profiled 12° depth sounder is specifically designed for sailboat hulls with a deadrise angle between 8° and 15°. The 12° internal tilt of the transducer element compensates for this angle, ensuring the sonar beam is directed vertically toward the seabed for optimal performance.

The B75H BB TH transducer is made of bronze. Bronze transducers are generally not recommended for direct installation on aluminum or steel hulls due to the risk of galvanic corrosion. For these hull types, it is preferable to use transducers made of plastic or stainless steel specifically designed for this purpose, or to provide adequate isolation if the installation of a bronze transducer is mandatory.

Yes, the Raymarine B75H BB TH transducer is covered by Raymarine’s standard manufacturer warranty. For specific details regarding the duration or terms of this warranty, please refer to the official documentation provided by Raymarine.