In Underwater acoustic systems

Hydrophone gp1280

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Hydrophone GP1280

The GP1280 is a preamplified, omnidirectional hydrophone, a professional tool suitable for a wide range of applications. Its low self noise and high sensitivity makes it especially suited for ambient noise measurements and recording the acoustic signature of mammals.

Especially indicated for ambient noise measurements and mammal’s acoustic signature.

• High sensitivity
• Low noise (“sea state zero”)
• Wide usable frequency range
• Double output: single/differential
• Calibration input
• High materials quality
• Gisma connector serie 35, 7 Pin

technical informations

Working band: 5-90.000 Hz

• High pass filter on preamplifier : Customizable (on demand)
• Balanced output sensitivity: -163 dB re 1V / uPa @ 5kHz (customizable)
• Single output sensitivity: -169 dB re 1V / uPa @ 5kHz (customizable)
• Directivity : Spherical – Omnidirectional
• Max working depth : 1000 m
• Gain @5kHz: 30 dB (single output), 36dB (balanced output)
• Equivalent input acoustic noise @5kHz: 32 dB re 1uPa / sqrtHz
• Input impedance: 10 MOhm
• Supply voltage range: 11.5-30 Vdc
• Current consumption: 9 mA @ 12 Vdc
• Output voltage swing: 6Vpp (single output), 12 Vpp (balanced output)
• Weight in air: 500 gr
• Body construction: Stainless steel AISI 316 or POMC
• Dimensions: 233,25 x 33,5 mm
• Packaging: Pelicase mod.1170

Accessories and optional configurations

• Protective frame
• Protective frame with suspension system for vibration damping
• Portable and rugged receiving unit fitted with variable gain adjustment, rechargeable battery, audio output, headphones output with volume knob, calibration signal.

Also available

• GP1280M model (without connector).
• Low Power version (from 3.1 Vdc to 5.5 Vdc, supply <5mA).

Ultra deep (up to 2000m) version.

• Custom cable lengths and connectors.
• POMC Body for long term deployments

Related products

• GP1280M model (without connector).

• Low Power version (from 3.1 Vdc , current abs. < 5mA).

Ultra deep (up to 2000m) version.

• Custom cable lengths and connectors.

• POMC Body for long term deployments 

Hydrophone gp1280 Download

Product sheet – Hydrophone gp1280