StarFish 990F Towed Sidescan Transducer Head

Product Code : BP00177



The ultimate high resolution StarFish side scan sonar for extreme image definition and target detection. Based on the popular and proven 450F design, the StarFish 990F uses high frequency 1MHz acoustic 'chirped' pulses with a 0.3° horizontal beam width to produce the most defined and clear images from any StarFish system. With a 35m range capability on each channel (giving 70m total swathe coverage), the StarFish 990F is the ideal tool for high resolution surveys in ports & harbours, academic research, inland waterways such as rivers and canals, and excels when used for SAR (Search And Recovery/Rescue) operations.

Measuring less than 15 inches long the StarFish 990F sonar is small enough to be transported in your rucksack. Lightweight and quick to deploy by hand, the 990F towed system is independent of the boat requiring no fixed installation which makes it easy to transport and operate from any vessel.

Dimensions

Specifications

Dimensions...
Length 378mm (14.9")
Width 110mm (4.3")
Height 97mm (3.8")
Weight...
In Air 2.0kg (4.4lbs)
In Water 1.0kg (2.2lbs)
Depth Rating...
Body 50m (164ft) max
Acoustic...
Operating Frequency 1000kHz nominal
Operating Range 1m to 35m (3ft to 115ft) on each channel providing max 70m (230ft) total coverage.
Operating Mode CHIRP pulse compression
Pulse Length 100us typical
Towing Cable...
Length 20m (65ft)
Breaking Strain >150kg (330.7lbs) Kevlar reinforced
Minimum Bend Radius 30mm (1.2")
Construction Black polyurethane jacketed with internal Kevlar reinforcing member
Transducers...
Body Reinforced red polyurethane rubber
Vertical Beam Width 60° nominal (@ -3dB signal level)
Horizontal Beam Width 0.3° nominal (@ -3dB signal level)
Arrangement Dual fin mounted transducers with 30° down angle from horizontal.
Transmit Source Power Level <210dB re 1µPa @ 1m

Please note that all specifications are subject to change in line with our policy of continual product development.

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