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Raymarine B175L (A80048) is a 1kW single-channel Low-band CHIRP bronze thru-hull transducer featuring a fixed internal 20° tilted ceramic element. Engineered specifically for steep deadrise hulls (16° to 24°), the internal tilt compensates for aggressive hull deadrise to direct the sonar beam vertically downward without requiring an external fairing block. Its low-profile housing sits virtually flush against the hull, eliminating drag and water turbulence for clear sonar performance at speed. Operating across Low CHIRP frequencies (40 kHz to 60 kHz) with a wide 32° to 21° beam width, the B175L delivers exceptional deep-water bottom tracking down to 2,500 ft, making it an ideal choice for deep-water offshore sport fishing and bottom discrimination.
| Specification | Details |
| Part Number (SKU) | A80048 |
| Model | B175L (20° Tilted Element) |
| Mounting Type | Low-Profile Thru-Hull (Tilted Element) |
| Housing Material | Cast Bronze (suitable for fiberglass or wooden hulls) |
| Element Tilt Angle | 20° Fixed Internal Tilt (for 16° to 24° deadrise hulls) |
| Hull Deadrise Compatibility | 16° to 24° Deadrise |
| Power Rating | 1,000 W (1 kW) RMS |
| Operating Frequency | Low-Band CHIRP (40 kHz to 60 kHz) |
| Bandwidth | 20 kHz Total CHIRP Bandwidth |
| Beam Width | 32° to 21° |
| Maximum Depth Range | Up to 762 m (2,500 ft) |
| Built-in Sensors | Fast-response Water Temperature, Depth |
| Connector Type | Raymarine 11-Pin CHIRP Connector (Direct CP470 / CP570 / Axiom Pro RVX) |
| Cable Length | 10 m (33 ft) attached cable |
| Waterproof Rating | IPX6 / IPX7 / IPX8 |
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