+44 (0)1262 490234    sales@neptune-sonar.co.uk
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T400

T400
  • SURFACE RECEIVER UNIT
  • DIFFERENTIAL INPUT
  • SINGLE ENDED OUTPUT
  • GAIN/FILTER SWITCH
  • HEADPHONE OUTPUT

The T400 ‘Surface Receiver’ is designed to interface to Neptune’s hydrophones that include integral pre-amplifiers. 

The hydrophone signal is converted from a differential to single ended output, with a standard BNC connector. 

The preamplifier has selectable gain options of 0, 20 and 40 dB and high-pass filter options of 10 Hz, 1 kHz and 10 kHz.

Technical Specification

Useful Frequency Range
  • 5 Hz to 500 kHz
Input
  • Differential, 10kΩ Impedance
Power Supply
  • 24 Vdc Nominal
  • (12 to 36 Vdc)
  • 15 mA quiescent, 40 mA with hydrophone
  • 150 mA
  • (max)
  • signal and load dependant
Noise
  • <20nV/√Hz RTI
Output
  • BNC - Single Ended, 50Ω Impedance 3.5mm Jack - Headphones
Gain Settings
  • 0, 20 and 40 dB
High-pass Filter Settings
  • 10 Hz, 1 kHz and 10 kHz

Our Company

Formed in 1990, Neptune Sonar is now a leading company in underwater transducer technology, offering one of the world's largest and most comprehensive range of undersea defence and commercial transducers.

Based in the UK, our research and manufacturing operation is located on a 25-acre site in East Yorkshire. With a 60,000 square metre trials lake and a floating calibration laboratory, the site provides an extensive range of facilities supporting every aspect of acoustic transducer development from modelling and design to final product acceptance.

Neptune Sonar Limited
Kelk Lake
Kelk
East Yorkshire
YO25 8HG

T: 01262 490234
E: sales@neptune-sonar.co.uk
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We design, manufacture and test acoustic sensors and electronics for...

  • Naval Defense
  • Maritime Security
  • Offshore Oil & Gas
  • Hydrographic Survey Industry
  • Oceanographic Science
  • Environmental Sectors
  • Aquaculture