Single Channel Hydrophone Amplifiers

Our Hydrophone amplifiers are for professional use in underwater acoustics with high performance and quality. We have several models with different features and sensitivity. The more sensitivity the more the cost. Define your purpose to determine which model is best for your project.

Hydrophone amplifiers. Overview (1 channel). Find the models on this page.

Models with several channels (2,5 or 8 channels) are covered on a separate page:

Hydrophone Amplifiers Categories in regards of use

PD 1102 Pinger Detector - Sonar Detector

PD 1102 (etec) Pinger detector or Sonar Detector is the ultimate Underwater hydrophone Listening Amplifier and Acustic Alarm Detector. Also called Pinger Detector or Click Detector.

A high sensitive high gain ultra Low noise amplifier with frequency detector and automatic gain control. State of the art in hydrophone amplifying.

Applications:
• detection of acoustic pinger
• fisheries inspection
• cetacean sound recording
• underwater acoustics

Fisheries inspection and control
The PD1102 Pinger Detector Hydrophone amplifier is developed especially for detection of acoustic pingers for fishery authority control in regards to: The council Regulation EC No 812/2004: "concerning incidental catches of cetaceans in fisheries and amending Regulation (EC) No 88/98".

The PD1102 Pinger Detector is tested and recognized by german fishery authority.

The PD1102 Pinger Detector is easy to use and operate. A unique feature with this instrument is to monitor pingers directly from the inspection vessel. The effective low frequency filters in conjunction with the Automatic Gain Control may under moderate weather conditions offer the unique possibility of monitoring pingers aboard even with the engines slow running and/or the vessel in slow drift.

LEDs are optical indicator for ultrasound frequencies received close-by. The pinger detector is equipped with 3 operating modes and 4 noise filters. Amplifies original hydrophone signals and alllows recording of all signals. Convert ultra sound signals into audible frequencies. mix both modes.

Filters reduce low fequencies of background noice e.g. coming from vessel engines and seawaves.

PD1102 Pinger Detector System overview
the pinger detector system consists of :

Controls and features
• the unit will monitor the frequency range from 700Hz to 160kHz
• Includes frequency converter for monitoring sounds above the audible range
• the unit may also be used as a conventional underwater listening amplifier
• build in Automatic Gain Control for optimum signal strengh
• High Pass Filters for attenuation of Seawaves and Engine noise
• Gain hold function for suppression of background noise and transients
• Switchable monitoring between full range hydrophone signal and frequency conversion
• Low Noise Charge Input Amplifier will handle all passive piezoelectric transducers

Technical data
• Extremely high signal gain of 80dB maximum
• Switchable High Pass Filter Settings : 700Hz, 1500Hz, 3300Hz, 7000Hz
• Alternative unit High Pass Filter Settings : 7Hz, 70Hz, 700Hz, 2kHz, 7kHz, 20kHz
• Output for headphones with standard 3.5mm mini jack
• Audible frequency range 20 to 20kHz with volume control
• Full range hydrophone signal output with BNC connector and fixed signal level for measuring purpose

Sensitivity considerations
In general this amplifier has been developed in order to monitor pingers at a very long distance
Analog pinger frequency 8 - 12 kHz up to 400 m.
Digital pinger frequency 10 - 120 kHz up to 200 m.
The build in frequency detector will detect various frequencies at a distance up to 50meters

The maximum detection range is greatly influenced by the weather conditions and the general back ground noise.
By operating the low frequency seawave filters and the automatic gain control function the user can obtain good sesitivity even in rough weather

Order
PD 1102 Pinger Detector - Sonar Detector with hydrophones

PD1102 Pinger Detector Amplifier system with hydrophone. System packed in a watertight suitcase with Hydrophone and cable. Weight is appr. 7.5kg

Price
PD1102 Pinger Detector System with hydrophone. Price.€ 4200/pc

Order
PD1102 Pinger Detector Amplifier system (no hydrophone). System packed in a watertight suitcase.Weight is appr. 7.kg

PD1102 Pinger Detector Amplifier system with hydrophone. System packed in a watertight suitcase with Hydrophone and cable. Weight is appr. 7.5kg

Price
PD1102 Pinger Detector System (no hydrophone). Price. € 2800/pc

A1101 Pinger & Sonar detector with Envelope detector

The unit contains an envelope or "click" detector which has a seperate output so the hydrophone signal and the envelope signal may be monitored simultaniously.

Internal powered with 2 pcs. build-in 9volt PP3 batteries. This unit may also be powered by an external 12Volt battery or by a +/- 12Volt dual power supply. The unit has a very low current consumption and the maximum opration time is appr. 24 hours on a set of full charged batteries.

Details & Technical data for A1101 Pinger & Sonar detector

Price
A1101 Pinger & Sonar detector. Price. € 1000/pc.

A1001 Hydrophone amplifier. Low cost

Details & Technical data for A1001 Hydrophone amplifier

Price
A1001 Hydrophone amplifier. Price. € 600/pc.

B1501 Hydrophone amplifier

Description B1501
• Hydrophone Voltage Amplifier
• Very low noise. Extreme high input impedance
• Wide frequency bandwidth
• Includes Lowpass filter, Highpass filter, Gain control, Input impedance controls
• High Pass Filter for filtering off low-freq. seawaves
• Water splash proof
• Intended for stationary use in rough invironments or for monitoring use in laboratory and research invironments
• variable input Resistance and capacitance to setup filtering and/or attenuation directly on the transducer input terminals
• special controls on the transducer input terminals in order to handle extremely high signals coming from picking up of underwater explosions or for filtering of heavy sea-waves
• buffered at the signal output and may drive very long cables up to 1000 meters
• BNC connectors In and Out
• build-in 2 pcs. 9Volt PP3 batteries. Low power consumption. It may also be powered by an external 12 to 24Volt battery or a laboratory supply.

Details & Technical data for B1501 Hydrophone amplifier

Price
B1501 Hydrophone filter amplifier. Price. € 1000/pc.

PA1001 Hydrophone & underwater loudspeaker amplifier

This amplifier is a stand alone unit with a power amplifier and a hydrophone reciever amplifier complete with buildin envelope or "click" detector and batteries and charger supplied all together in a watertight suitcase.

Description PA1001
This amplifier is designed for driving an underwater piezoceramic loudspeaker like the Reson type TC2130 or eq. It also contains a high input impedance hydrophone amplifier and an envelope or "click" detector for monitoring, recording or listening.

The Amplifier is capable of driving 90volt peak to peak of signal power up to 300kHz in a capacitive load of 10nF maximum with a caracteristic impedance of 100ohm. The amplifier is supplied in a watertight suitcase with 4pcs.12volt batteries. Operating time is appr. 12hours on a set of fully charged batteries.

Details & Technical data for PA1001 Power amplifier

Price
PA1001 Hydrophone amplifier. Price. € 2600/pc.