Raymarine B175H-W 1000W D/T Through Hull Wide Beam Transducer 12° Angle

Raymarine B175H-W 1000W D/T Through Hull Wide Beam Transducer 12° Angle

Raymarine B175H-W 1000W D/T Through Hull Wide Beam Transducer 12° Angle is a game-changer for your vessel. Here at Morgan Marine, we recommend this 1kW CHIRP transducer for those who want the ultimate in target detection and coverage in shallower to mid-depth coastal waters.

The B175H-W is designed with a 12° tilted element, specifically engineered for boats with a hull deadrise of 8° to 15°. This clever design allows the ceramic element to be tilted inside the flush-mount housing, ensuring the sonar beam points straight down at the seabed without the need for a bulky external fairing block. This results in a cleaner installation, less drag, and better performance at higher speeds.

What sets the 'Wide' version apart is its constant 25° beamwidth. While traditional high-frequency transducers have a narrow beam that can miss fish off to the sides, the B175H-W provides massive coverage under the boat. You’ll see larger, clearer fish arches and won't lose your targets as easily in choppy swell.

Raymarine B175H-W 1000W D/T Through Hull Wide Beam Transducer 12° Angle Key Features

• 1kW High-Frequency CHIRP: Operates across the 150–250 kHz frequency band for incredible target separation and high-resolution imagery.
• Ultra-Wide 25° Beam: Provides twice the coverage of standard high-frequency transducers, making it much easier to locate fish in the upper water column.
• 12° Tilted Element: Perfect for hulls with a deadrise between 8° and 15°. It compensates for your hull’s slope to keep the beam vertical.
• Depth & Temperature: Provides highly accurate digital depth and fast-response water temperature readings.
• Flush-Mount Bronze Housing: A low-profile "mushroom" head design that sits nearly flush to the hull, minimising drag and improving performance on fast-moving powerboats.
• Superior Bottom Detail: The high-frequency CHIRP excels at showing bottom structure and identifying fish tucked tightly against wrecks or reefs.
• Plug & Play Compatibility: Designed to work seamlessly with Raymarine’s Axiom Pro, Axiom 2 Pro, and CP470/CP570 CHIRP sonar modules.

Technical Specifications:

• • Frequency: 150 - 250 kHz (High CHIRP)
  • Beamwidth: Constant 25°
  • Hull Material: Fibreglass or Wood (Bronze housing)
  • Maximum Depth: Approximately 152m (500ft) depending on water conditions
  • Angle: 12° Tilt (For 8° to 15° deadrise

Raymarine B175H-W 1000W D/T Through Hull Wide Beam Transducer 12° Angle FAQs

What does the ‘W’ in B175H-W stand for?

The ‘W’ stands for Wide Beam. Unlike standard high-frequency transducers that have a narrow beam (often around 6° to 10°), the B175H-W provides a constant 25° beamwidth across the entire frequency range. This gives you much greater coverage under the boat—roughly double the area of a standard transducer—making it far easier to spot fish arches in the upper water column.

Why do I need the 12° Angled version?

This specific model features a Tilted Element™. Because most boat hulls are V-shaped, a standard flush transducer would point the sonar beam off to the side. The 12° tilt is designed for hulls with a deadrise angle of 8° to 15°. It ensures the ceramic element inside the housing sits perfectly level, pointing your sonar beam straight down to the seabed for the most accurate readings.

What kind of performance can I expect?

This is a 1kW (1000 Watt) powerhouse. Operating on the High CHIRP band (150-250 kHz), it delivers exceptional target separation. You won't just see "blobs"; you’ll be able to distinguish between individual baitfish and larger predators. It is rated for depths of up to approximately 150m (500ft), making it the ultimate tool for inshore and pelagic fishing.

Is this transducer compatible with my boat’s hull?

The B175H-W is housed in a high-quality bronze casing. This is specifically recommended for fibreglass or wood hulls.

Important: Never install a bronze transducer in an aluminium hull, as this will cause galvanic corrosion. If you have a metal boat, please contact us about the stainless steel version 

What do I need for installation?

The B175H-W is a low-profile, through-hull transducer, meaning it sits almost flush to the hull to minimise drag and turbulence.

Hole Size: You will need to cut a 95mm (3.75") hole.

Cabling: Most Raymarine wide-beam transducers come with a short "pigtail" cable. Depending on your setup (e.g., if you are connecting to a CP470 or Axiom unit), you may require a specific adapter or extension cable. Please chat with our team here at Morgan Marine to ensure you have the correct A80328 or A102146 cable for your display.

Can I use this alongside another transducer?

Yes, many of our customers pair the High-Wide (B175H-W) with a Low-frequency unit (like the B175L) to get the best of both worlds: deep-water bottom tracking and high-detail fish spotting in the upper water column. If you are running a dual-transducer setup, you will typically use a Y-cable to connect both to your sonar module.

Is it safe to test the transducer on the trailer?

No. You should never operate a CHIRP transducer in the air. These high-power units rely on the surrounding water to dissipate heat. Running it "dry" for even a short period can cause the internal ceramic element to overheat and fail.