Description
Low-profile tilted through-hull single-band 600W CHIRP fishfinder transducer.
The B75C is available with zero, twelve or twenty degrees tilt in the High (H), Medium (M) or Low (L) bands. There is no 20 degree Low band model.
Specifications:
| Type | CHIRP single-band fishfinder transducer |
| Low Band | Frequency range 40-75 kHz / Beam width 32-21 degrees |
| Medium Band | Frequency range 80-130 kHz / Beam width 24-16 degrees |
| High Band | Frequency range 130-210 kHz / Beam width 15-9 degrees |
| Power Rating | 600 watts |
| Mounting | Low-profile through-hull |
| Housing | Bronze |
| Hull Aperture | 2.8125′ (70mm) |
| Usable Shaft Length | 3.75′ (95mm) |
| Cable Length | 10 meters |
| Mix and Match | Yes |
| Temperature Sensor | Yes |
| Speed Sensor | ? |
| Retractable Insert | ? |
| Tilted | Yes |
| Status | In production |
| Reference Page |
Product Data Sheet
Base Models
These Mix and Match base models must be combined with a Mix and Match cable for installation. The suffix ‘-MM’ in the Gemeco part number designates a Mix and Match base model.
| Transducer | Code | Airmar Part # | Tilt | Description |
|---|---|---|---|---|
| B75C-0-H-MM | 41-554-2-01 | 0 degrees | High Band, zero tilt | |
| B75C-0-L-MM | 41-549-2-01 | 0 degrees | Low Band, zero tilt | |
| B75C-0-M-MM | 41-551-2-01 | 0 degrees | Medium Band, zero tilt | |
| B75C-12-H-MM | 41-555-2-01 | 12 degrees | High Band, 12 degree tilt | |
| B75C-12-L-MM | 41-550-2-01 | 12 degrees | Low Band, 12 degree tilt | |
| B75C-12-M-MM | 41-552-2-01 | 12 degrees | Medium Band, 12 degree tilt | |
| B75C-20-H-MM | 41-556-2-01 | 20 degrees | High Band, 20 degree tilt | |
| B75C-20-M-MM | 41-553-2-01 | 20 degrees | Medium Band, 20 degree tilt |
Mix and Match Cables
This transducer uses the CHIRP Mix and Match system. Installation requires two parts – a base model plus one of the CHIRP Mix and Match (MMC) cables listed below.
Each base model has a 9 meter pigtail cable permanently attached. This cable ends in an Airmar 11-pin female connector. The Mix and Match cables are 1 meter long and have a male Airmar 11-pin connector at one end (to connect to the transducer pigtail) and a brand-specific connector at the other end (to connect to the sounder or fishfinder). If an owner changes their fishfinder or sounder, a different MMC cable can be installed without disturbing the transducer itself or needing to re-run cable through the boat.
| Cable Connector | Code | Airmar Part # | Length | Equipment |
|---|---|---|---|---|
| MMC-0 | 33-1359-01 | 1 meters | Bare wire applications | |
| MMC-11R-HM | 33-1402-01 | 1 meters | Raymarine High/High Wide/Medium Band 11-pin | |
| MMC-11R-LDB | 33-1357-01 | 1 meters | Raymarine Low and Dual-Band 11-pin | |
| MMC-12G | 33-1356-01 | 1 meters | Garmin orange 12-pin | |
| MMC-14HB | 33-1386-01 | 1 meters | Humminbird 14-pin | |
| MMC-8G | 33-1354-01 | 1 meters | Garmin blue 8-pin | |
| MMC-9N | 33-1394-01 | 1 meters | Navico 9-pin | |
| MMC-9N2 | 33-1395-01 | 1 meters | Navico Dual 9-pin | |
| MMC-BL | 33-1355-01 | 1 meters | Lowrance/Simrad blue 7-pin | |
| MMC-BL2 | 33-1358-01 | 1 meters | Lowrance/Simrad Dual Y-cable blue 7-pin | |
| MMC-HB | 33_1385-01 | 1 meters | Humminbird #9 |
Replacement Parts
| Part | Airmar Part # | Description |
|---|---|---|
| 02-143-01 | Bronze Hull Nut | |
| 09-1012-01 | Rubber Washer | |
| 75WR-1 | Crows Foot Wrench | |
| 75WR-2 | Single Handle Wrench | |
| 75WR-3 | Double Handle Wrench | |
| 75WR-4 | Single Handle Wrench |
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