NIMROD V2 - Underwater Navigation & Sonar System

A compact and lighter weight modular diver hand-held underwater sonar and navigation console.

The system combines standard:

• GPS receivers – internal & external
• 15m tether and oat
• Mission planning
• Digital compass/gyroscope
• Depth reading
• Clock/stopwatch

Typical uses are the search & relocation of the following. . .

• Unexploded ordnance by navy mine clearance divers
• Commercial EOD divers
• Seabed infrastructure within the toshore oil & gas environment (e.g. pipelines, well heads and structures)
• Missing persons, lost property, vehicles, aircraft, wrecks by police or search and rescue divers
• Seabed/lake-bed antiquities by marine biologists, archaeologists, sport divers, etc

What's included with the NIMROD?

• NIMROD unit
• Single beam sonar
• GPS float
• 15m of GPS float cable
• Battery charger
• R.A.I.D storage case
• USB to micro USB cable
• Spare O-rings
• User instructions
• USB software
• Allen keys (8mm + 6mm)
• NavQuest 600 micro DVL (optional addition)

HOUSING 
Dimensions (Console): 169mm(L) x 134mm(W) x 76mm(H)
Weight: ~2.3kg in air, ~0.6kg in water (inc battery)
Weight: (with Sonar & DVL) ~3.75kg in air, ~0.8kg in water (inc battery)
Construction: aluminium (AL 6061-T6)
Finish: black hard anodised
Connectors: LEMO W Series connectors (External GPS, Sonar, DVL and auxiliary)
Operating temperature: 0°C to +45°C
Storage temperature: -10°C to +50°C
Operating depth: 80m

ELECTRICAL
Power supply: 12 -24V DC nominal from internal supplied battery pack (configurable)
Processor: 32BIT ARM CORTEX processor
Display: 5 inch, 320 x 240 pixel, 16-bit colour liquid crystal display
Viewing angles: 30 to 60 deg.

DATA STORAGE & LOGGING
Internal 16Gb Flash memory (other capacities available on request)
Data Logging capacity (2Mb per minute) > 100hrs on internal storage
TW1421 High Gain Dual Feed Embedded GPS/GLONASS Antenna

• Architecture Dual, Quadrature Feeds
• 1 dB Bandwidth 31MHz

INTEGRATED SENSORS
Pressure sensor for depth calculation
Internal sensor for leak detection
Attitude /Heading reference system:-

• Pitch and roll
• Electronic magnetic compass
• Rotational rate gyros
• Battery voltage level indicator

INTERFACES
User interface: 5 solid-state piezo button interface for menu navigation
Communication interfaces:

• Bluetooth communication for sending and downloading missions
• USB port for connection to a PC, used for updating Firmware software

SYSTEM EXTRAS

• Forward looking single beam sonar
• DVL (Doppler-Velocity-Log) tracking
• Thruster control
• Acoustic Modem

NIMROD & AVX COMPATIBILITY 
This system includes the NIMROD unit, single beam sonar and DVL which are mounted to an AVX scooter. This system was designed for the user to navigate at faster speeds than you would get when only swimming underwater, with the added benet of not needing to resurface. (Mounting positions may need to be adapted depending on the sonar and DVL used).

Demonstrations are available for this piece of kit. Contact our sales team to discuss.