C75 Hydrophone
The Cetacean Research™ C75 series Hydrophones are our preamplified omnidirectional hydrophone.
- Cetacean Research™ C75 hydrophone
the Cetacean Research™ C75 preamplified omnidirectional hydrophone
- Cetacean Research™ C75 hydrophone with cable and battery box
Cetacean Research™ C75
Shielded Cable Length [m]- mating connector molded to 15, 30, or 50 [m] shielded cable
- other lengths available on a custom order basis
- cable includes Integral Connector rated to a depth of 7,000 meters.
- Hydrophone Protection Cage
option: add a Hydrophone Cage for protection, flow noise reduction (shown with Cetacean Research™ C55 hydrophone). view more
- Frequency Response graph for C75
Cetacean Research™ C75 hydrophone Frequency Response graph - log scale
- C75 hydrophone beam - horizontal
Horizontal Beam Pattern - 50kHz - Cetacean Research™ CR75 omnidirectional Hydrophone
- C75 hydrophone beam - vertical
Vertical Beam Pattern - 50kHz - Cetacean Research™ CR75 omnidirectional Hydrophone
| C75 / C75X | |
| Linear Frequency Response Range (±3dB) [kHz] | 0.010 to 170 |
|---|---|
| Usable Frequency Range (+3/-12dB) [kHz] | 0.003 to 250 |
| Transducer Sensitivity* [dB, re 1V/µPa] | -200 |
| Preamplifier Gain [db] | 20 / 33 |
| Effective Sensitivity* [dB, re 1V/µPa] | -180 / -167 |
| SPL Equiv. Self Noise at 1kHz [dB, re 1µPa/√Hz] | 51 |
| Power Requirement [Vdc] | 5 to 32 |
| RMS Overload Acoustic Pressure [dB, re 1µPa] | 184 to 201 / 171 to 188 |
| Maximum Operating Depth ** [m] | 920 |
| Operating Temperature Range [°C] | -40 to 85 |
| Output Impedance [Ω] | 10 |
| Dimensions [mm] | 92L x (25 to 18)dia. |
| Integral Connector† | Subconn MCBH3MSS |
| Directionality | omnidirectional |
** 1,000 meter versions are available. Append "-1k" to the model number to order a hydrophone with a depth rating >1,000 meters.
*** Connectors are rated to a depth of 7,000 meters; see below (or to the side) for mating connector and cables.
Shielded Cable Length [m]
- mating connector molded to 15, 30, or 50 [m] shielded cable
- other lengths available on a custom order basis
- cable includes Integral Connector rated to a depth of 7,000 meters.
Options
- removable in-line high-pass filter
- external power supply support
- hydrophone protection cage
- custom orders not listed above
Battery / Connector box
Battery boxes are rated NEMA-4X water resistant. Standard signal connection for Cetacean Research™ C75 hydrophones is through a watertight female BNC connector with gold center contact. The hydrophones are powered by one 9V battery (not included) or an optional long-life rechargeable, external power supply.
| Signal Output | Female BNC connector |
|---|---|
| Battery Life [hours] | > 20 |
| Box Dimensions [mm] | 110 long (including connectors) x 90 wide x 50 high |
