

The B765 is a through-hull, 600W, dual-band CHIRP transducer with a bronze block and plastic fairing. It is available in either the Low & Medium bands or Low & High bands.
The B765 is the same size as a conventional B744V transducer.
| Feature | Specification |
|---|---|
| Low Frequency Band | 40-75 kHz |
| Medium Frequency Band | 80-130 kHz |
| High Frequency Band | 130-210 kHz |
| Housing | Through-hull bronze block with urethane fairing |
| Power Rating | 600W RMS |
| Active Ceramic Elements | 2 |
| Beam Widths | 21-30° in Low band; 16-24° in Medium band; 9-15° in High band |
| Temperature Sensor | Integrated sensor in transducer body |
| Transducer Cable | 10 meters (32.8 feet) with bare wire connection |
| Hole Size | Mounting hole diameter is 51mm (2.00"), plus a hole for the fairing retainer bolt |
| Overall Height | 173mm (6.80") |
| Fairing Size | 77mm (3.05") x 349mm (13.73") |
| Recommended Boat Size | 9 meters (30 feet) and larger |
| Version Name | Characteristics |
|---|---|
| B765C-LM | Low (40-75 kHz) and Medium (80-130 kHz) frequency bands |
| B765C-LH | Low (40-75 kHz) and High (130-210 kHz) frequency bands |