StarFish 450F Core Towed Sidescan System


  • 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.
SKU: OR_BPS_540F Category:


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

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)

StarFish 450F Towed Sidescan Transducer Head (with 20m cable attached)

Part Number BP00018

Length378mm (14.9″)
Width110mm (4.3″)
Height97mm (3.8″)
In Air2.0kg (4.4lbs)
In Water1.0kg (2.2lbs)
Depth Rating…
Body50m (164ft) max
Operating Frequency450kHz nominal (430kHz-470kHz CHIRP)
Operating Range1m to 100m (3ft to 320ft) on each channel providing max 200m (640ft) total coverage
Operating ModeCHIRP pulse compression
Pulse Length400us typical
Towing Cable…
Length20m (65ft) – attached to head (no in-line connector)
Breaking Strain>150kg (330.7lbs) Kevlar reinforced
Minimum Bend Radius30mm (1.2″)
ConstructionBlack polyurethane jacketed with internal Kevlar reinforcing member
BodyReinforced black polyurethane rubber
Vertical Beam Width60° nominal (@ -3dB signal level)
Horizontal Beam Width1.7° nominal (@ -3dB signal level)
ArrangementDual fin mounted transducers with 30° down angle from horizontal.
Transmit Source Power Level<210dB re 1µPa @ 1m

StarFish 450 Series Top Box

Part Number BP00019

Length166mm (6.5″)
Width106mm (4.2″)
Height34mm (1.3″)
In Air0.4kg (0.9lbs)
Operating Voltage9-28V DC (PSU 90-264V, 47-63Hz Mains AC)
Power Consumption, Idle2.5W (200mA @ 12V) approx
Power Consumption, Scanning5W (400mA @ 12V) approx
Power Protection1.1A thermally resetting internal fuse, transient voltage spike protection, reverse polarity pretection, EMC and noise supression filtering choke
Signal ProcessingDual channel, simultaneous operation design, high speed real-time digital pulse compression filtering
Power2.1mm (0.08″) DC jack socket
DataUSB 2.0 B-Type connector
Acoustic9-Way Female D-Type Socket
Temperature Range-5°C to +40°C (23°F to 104°F)
IP RangeIP50 (Protected against ingress of dust, no protection against ingress of liquids)

Universal AC mains to DC power supply (with international AC adaptors)

Part Number BP00020

Lengthapprox 70mm (2.7″)
Widthapprox 50mm (2.0″)
Heightapprox 35mm (1.4″)
Mains Input90-264V AC, 47-63Hz
DC Output12V regulated (1% ripple max), 15W
AC PlugsInterchangable adapter plates: USA/Japanese, UK, Europe, Australasia
Output Connector2.1mm x 11mm DC plug (centre +ve)
Cable Length1.8m
Operating Temperature0°C to +40°C
Storage Temperature-20°C to +85°C
StandardsUL60950-1, EN60950-1, IEC60950-1
ApprovalsUL, cUL, CE, TUV Approved

2m cigar-plug DC power lead

Part Number BP00021

Lengthapprox 2m (6.5ft)
Connectors2.1mm x 11mm DC power plug. Automotive ‘Cigar/Cigarette Lighter’ Plug
Voltage Rating12V to 24V DC

Crocodile-clip to cigar-socket DC adapter

Part Number BP00060

Lengthapprox 150mm (“)
ConnectorsAutomotive ‘Cigar/Cigarette Lighter’ Socket. Two ‘crocodile’ clips (+ve Red and -ve Black)
Voltage Rating12V to 24V DC