Furuno B175H High-Frequency CHIRP Transducer Bronze Low-Profile Thru-Hull 1kW

The Furuno B175H is a high-frequency CHIRP transducer featuring a low-profile bronze thru-hull housing and 1kW of transmit power. Manufactured by Airmar for Furuno, it delivers precision depth and water temperature data across a CHIRP frequency range of 130–210 kHz, providing up to 80 kHz of total bandwidth in a single installation.

CHIRP (Compressed High-Intensity Radar Pulse) technology gives the B175H a significant performance advantage over conventional single-frequency transducers. By sweeping continuously across its frequency band, it produces markedly superior target separation and resolution, capable of distinguishing individual baitfish, game fish, and underwater structures with exceptional clarity.

Key Features:

• Frequency: CHIRP High Band — 130 to 210 kHz
• Beam Width: 10° to 6° (narrow beam for deep-water detail and target separation)
• Power Rating: 1 kW
• Functions: Depth and water temperature
• Housing Material: Bronze — low-profile thru-hull design
• Mount Style: Low-profile tilted-element thru-hull (flush or tilted)
• Cable: 12-meter cable with 10-pin connector for Furuno compatibility
• Total Bandwidth: 80 kHz in a single installation

The B175H's low-profile bronze housing is engineered for vessels with varying hull deadrise angles, making it suitable for fiberglass or wood hulls on stepped, planing, or displacement hull types. The narrow beam angle makes it particularly well-suited for deep-water bottom fishing applications where fine detail and fish target separation are critical. It is compatible with Furuno sounders including the DFF1-UHD and TZT3 series (with appropriate cabling).