Tritech Super Seaking DST Sonar

Available as:
  • Rental
  • Sale (ex rental)

Tritech Super Seaking DST Sonar – Available for rental, hire and ex-rental purchase from Ashtead Technology.

The advanced Tritech Super SeaKing DST (Digital Sonar Technology) Dual Frequency CHIRP Sonar uses the very latest in composite transducer and CHIRP technology to produce an imaging sonar which delivers the clearest images available, at operating ranges previously unobtainable by sonar. CHIRP technology dramatically improves the range resolution compared with conventional sonars. In fact resolution can be improved by a factor of five times.

In addition, the modular transducer design and longer-life slip ring assembly of the sonar minimises the consequences of operational damage and improves on the SeaKing DST Sonars already excellent reliability. The Super SeaKing DST Sonar shares many of the features of the earlier SeaKing, which has been chosen as the standard obstacle avoidance sonar in many of the major ROV fleets around the world. The Super SeaKing DST Sonar is not one but two mechanically scanned imaging sonars in a single subsea pressure housing : a 325 kHz CHIRP sonar with a true operational range of up to 300 metres for long range target recognition, and a 675 kHz CHIRP sonar for ultra-high definition images. Other frequency options are available on request. All products in the SeaKing family can be run simultaneously on a single ArcNet communications link, using the same processor and display.

Key features

  • Composite material technology
  • Digital CHIRP system
  • Forward Looking Sonar, 360 Degree Sonar and Sector Scan Sonar Modes
  • Instantaneous scan reversal
  • Modular transducer construction - elements replaceable
  • New longer lasting slip ring assembly
  • Real-time switching between low and high frequencey
  • Real-time true acoustic zoom


  • Main ROV sonar
  • ROV forward looking sonar , ROV sector scan sonar , ROV obstacle avoidance sonar, ROV target recognition sonar
  • Main AUV sonar
  • AUV forward looking sonar, AUV sector scan sonar, AUV obstacle avoidance sonar, AUV target recognition sonar
  • Military mine counter-measure vehicle sonar
  • Harbour and port surveillance sonar

Technical specifications

Operating frequency (low)CHIRPing from 250 to 350 kHz
Operating frequency (high)CHIRPing from 620 to 720 kHz
Optional high frequency1 MHz
Beamwidth, vertical20º[325]
Beamwidth, vertical40°[675]
Beamwidth, horizontal3.0°[325]
Beamwidth, horizontal1.5°[675]
Maximum range300 m [325]
Maximum range100 m [675]
Minimum range0.4m
Range resolution5 - 400 mm depending on range
Source level210 dB re 1uPA @ 1 m
Pulse length20 - 300 microsec
Scan modesVarious combinations of resolution & speed
Mechanical step sizes0.225°, 0.45°, 0.9°, 1.8°
Mechanical resolution0.225°
Scanned sectorVariable to 360°
Continuous 360° mode availableYes
Sector offset mode availableYes
Standard maximum operational dept4000m
Optional maximum operational depth6800m
Standard materialsAluminium alloy-HE30, RPU
Optional materialsStainless steel
FinishHard anodised black
Standard connectorTritech 6 pin with water-block
Operating temperature-10°C to +35°C
Storage temperature-20°C to +50°C
Power requirements18 to 36 VDC @ 10VA
Communication protocolsArcnet, RS232
Data communciation rateArcnet 156 kBits/sec 78 kBits/sec RS232 115.2 kbaud
Communication requirementsTwisted pair, modem or coax
Software Features
Range selection1 to 300m
Gain and contrastRotary controls
Scanned sectorFully variable in direction and width to 360°
Quick select origin shiftCentre, forward, reverse, left and right
Resolution selection0.225° to 1.8°
Cursor measurementsOrigin to target and Target to target


242 x 110mm (L x Dia)9.5 x 4.3" (L x Dia)"3 kg in air (1.6kg in water)3.6lb in air (3.5lb in water)