StarFish 450F Core Towed Sidescan System

Product Code : BP00017

Advanced Design

StarFish 450F is the affordable high performance towed side scan sonar which produces spectacular images of the seabed. The compact hydrodynamic full body three-fin design improves stability of the sonar while its being towed which helps further improve the quality of images it produces.

High Performance

Utilising advanced digital CHIRP acoustic technology developed from the professional underwater survey industry, StarFish 450F can view targets at longer ranges without any loss in image quality. It competes with many larger commercial systems, yet the intuitive software makes it very easy to use.

Simple Operation

The StarFish 450 Series is designed to be 'Plug and Play', connecting to your Windows PC or laptop via a USB connection. Small, light and rugged, the StarFish 450F can easily be operated by a single person. Simply deploy the sonar by hand and tow from your boat to capture and record real-time images of the seafloor below. Our user friendly software makes seabed imaging easy for everyone.

Portable System

Measuring less than 15 inches long the StarFish 450F sonar is small enough to be transported in your rucksack. Lightweight and quick to deploy, the 450F towed system is independent of the boat requiring no fixed installation which makes it easy to transport and operate from any vessel.

System Setup

The Sonar connects to the Top Box. The Top Box then connects to the power source and any Windows based PC or Laptop via a USB connection to display, record and playback digital sonar images using StarFish Scanline software.

  1. Starfish 450F Side Scan Sonar "Towfish" Transducer Head
  2. Starfish 450 Top Box (includes USB and power cables)
  3. 20m cable (included with StarFish 450F Sonar)
  4. AC Mains power adapter (supports 110V and 240V)
  5. Customer supplied DC power supply 9V-28V (i.e. battery)
  6. Customer supplied PC or Laptop (with at least 1 free USB port and Windows XP, Windows Vista or Windows 7)


  • The smallest towed side scan sonar available.
  • Pioneering hydrodynamic design.
  • Easily transportable - fits in your rucksack.
  • Plug & play USB interface to any PC.
  • Easily powered from almost any source.
  • Simple & intuitive software.


Customer images captured with the StarFish 450F sidescan sonar...

If you've collected any interesting images with your StarFish 450F, we'd love to hear from you and upload them here.


Part Number BP00018

Length 378mm (14.9")
Width 110mm (4.3")
Height 97mm (3.8")
In Air 2.0kg (4.4lbs)
In Water 1.0kg (2.2lbs)
Depth Rating...
Body 50m (164ft) max
Operating Frequency 450kHz nominal (430kHz-470kHz CHIRP)
Operating Range 1m to 100m (3ft to 320ft) on each channel providing max 200m (640ft) total coverage
Operating Mode CHIRP pulse compression
Pulse Length 400us typical
Towing Cable...
Length 20m (65ft) - attached to head (no in-line connector)
Breaking Strain >150kg (330.7lbs) Kevlar reinforced
Minimum Bend Radius 30mm (1.2")
Construction Black polyurethane jacketed with internal Kevlar reinforcing member
Body Reinforced black polyurethane rubber
Vertical Beam Width 60° nominal (@ -3dB signal level)
Horizontal Beam Width 1.7° nominal (@ -3dB signal level)
Arrangement Dual fin mounted transducers with 30° down angle from horizontal.
Transmit Source Power Level <210dB re 1µPa @ 1m

Part Number BP00019

Length 166mm (6.5")
Width 106mm (4.2")
Height 34mm (1.3")
In Air 0.4kg (0.9lbs)
Operating Voltage 9-28V DC (PSU 90-264V, 47-63Hz Mains AC)
Power Consumption, Idle 2.5W (200mA @ 12V) approx
Power Consumption, Scanning 5W (400mA @ 12V) approx
Power Protection 1.1A thermally resetting internal fuse, transient voltage spike protection, reverse polarity pretection, EMC and noise supression filtering choke
Signal Processing Dual channel, simultaneous operation design, high speed real-time digital pulse compression filtering
Power 2.1mm (0.08") DC jack socket
Data USB 2.0 B-Type connector
Acoustic 9-Way Female D-Type Socket
Temperature Range -5°C to +40°C (23°F to 104°F)
IP Range IP50 (Protected against ingress of dust, no protection against ingress of liquids)

Part Number BP00020

Length approx 70mm (2.7")
Width approx 50mm (2.0")
Height approx 35mm (1.4")
Mains Input 90-264V AC, 47-63Hz
DC Output 12V regulated (1% ripple max), 15W
AC Plugs Interchangable adapter plates: USA/Japanese, UK, Europe, Australasia
Output Connector 2.1mm x 11mm DC plug (centre +ve)
Cable Length 1.8m
Operating Temperature 0°C to +40°C
Storage Temperature -20°C to +85°C
Standards UL60950-1, EN60950-1, IEC60950-1
Approvals UL, cUL, CE, TUV Approved

Part Number BP00021

Length approx 2m (6.5ft)
Connectors 2.1mm x 11mm DC power plug. Automotive 'Cigar/Cigarette Lighter' Plug
Voltage Rating 12V to 24V DC

Part Number BP00060

Length approx 150mm (")
Connectors Automotive 'Cigar/Cigarette Lighter' Socket. Two 'crocodile' clips (+ve Red and -ve Black)
Voltage Rating 12V to 24V DC

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

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