Kelvin Hughes

Situational Intelligence, The World Over

Navigation Radar

Navigation Radar

Since the 1940's, Kelvin Hughes has been supplying type approved radar to the commercial shipping fleet and is continually developing new products and navigation equipment to take advantage of the latest technologies in a way that brings confidence, reliability and low cost of ownership to the professional mariner and shipping operators.

Kelvin Hughes has taken navigation radar displays a significant step forward. Kelvin Hughes radar displays provide ease of integration into the bridge, modern processor design, Commercial Off The Shelf (COTS) components, reduced cost of ownership while at the same time utilising the detection performance of SharpEye™.

SharpEye™ systems provide the navigator with the ultimate in functionality, safety and reliability - each radar station can be dedicated or multifunction with a single station providing radar, chart, ECDIS and Conning modes, whilst providing continuous back up functionality.

The SharpEye™ radar transceiver does not contain a magnetron. Consequently, no routine maintenance, ultra-high reliability, and low cost of ownership.

Despite the low peak power - especially in poor weather conditions - the detection performance is superior to that of magnetron radars. Clutter suppression is achieved in the SharpEye™ radar transceiver itself. Clever use of a patented pulse sequence, pulse compression and radar return processing ensures that the radar operator is presented with targets and tracks on the display, whilst minimising the clutter from even the severest of rain storms and high sea states.

For more information on Navigation Radar

SharpEye™ S-Band Solid State Radar

SharpEye™ S-Band radar technology meets the challenges of safety, navigation and collision avoidance at sea through a clever combination of radar techniques designed to provide the best performance in all conditions.

Solid state radar ensures extremely high reliability and low through life costs:

  • No magnetron - minimal routine maintenance requirements
  • High reliability - solid state electronics
  • Upmast transceiver solution - no waveguide - easy to retrofit - reduced signal loss
  • Clutter suppression - pulse compression
  • Continuous health monitor
SharpEye S-Band Transceiver

SharpEye™ transmits a low power patented pulse sequence, which enables short, medium and long range radar returns to be detected simultaneously, allowing the radar operator to maintain situational awareness regardless of the range scale setting of the radar display and other users of the radar can select their own radar display range scale. The detection performance of SharpEye™ with a low peak transmission power of less than 200W is equivalent to a 30kW magnetron radar.

The radar performance also increases from the transceiver being positioned upmast, thereby minimising signal loss in the waveguide as well as simplifying installation. The high reliability and lack of routine maintenance means the need to subsequently access the SharpEye™ transceiver is almost removed.

10kW X-Band Upmast Magnetron Radar

The 10kW Upmast Magnetron Radar is a low cost type approved X-Band radar designed to provide a lightweight solution meeting IMO requirements.

The compact design which includes a performance monitor provides the low noise transceiver to be contained within the antenna turning mechanism housing.

A 10kW X-Band radar is available with either a 1.3m, 1.9m or 2.5m antenna.

MantaDigital™ Radar Display

MantaDigital™ is available in a variety of workstation types to meet the requirements of different vessel types and operational scenarios. It can be supplied in options ranging from a single Desktop retrofit system through to a fully inter-switched bridge system with up to six radar sensors and displays.

Display options include 22" and 26" screens, pedestal, desktop and console mount. For non pedestal configurations the processing unit requires siting appropriately.

As with the Integrated Radar Display the MantaDigital™ radar software provides a platform for ARPA radar, chart, ECDIS and Conning display options. The software is easily interacted with a 3 button trackball, keyboard and on screen prompts to assist the user.

Antenna Systems

Standard types include patented low profile (to reduce wind loading) 1.3m, 1.9m, 2.5m X-Band and 3.9m S-Band horizontally polarised slotted waveguide open array antennas.

  Specifications subject to change without notice.
System Name Display Size Description Transceiver Antenna
10kW ID1 22" Integrated Radar Display 1920 x 1200

10kW X-Band Upmast

Transmitter Interface Unit

1.3m / 1.9m / 2.5m

24RPM / 40RPM option

ID2 26" Integrated Radar Display 1920 x 1200
10kW MD1 22" MantaDigital™ Processor & Display 1920 x 1200

10kW X-Band Upmast

Transmitter Interface Unit

1.3m / 1.9m / 2.5m

24RPM / 40RPM option

MD5 26" MantaDigital™ Processor & Display 1920 x 1200
SharpEye™

ID3

22" Integrated Radar Display 1920 x 1200

S-Band SharpEye™ solid state upmast

3.9m

Drive control unit

ID4 26" Integrated Radar Display 1920 x 1200 S-Band SharpEye™ solid state upmast
SharpEye™ MD12 22" MantaDigital™ Processor & Display 1920 x 1200 S-Band SharpEye™ solid state upmast

3.9m

Drive control unit

MD13 26" MantaDigital™ Processor & Display 1920 x 1200 S-Band SharpEye™ solid state upmast

All systems supplied with:

  • ARPA Tracker
  • For MantaDigital™ Desktop/Console/Pedestal mount options
  • Trackerball
  • Keyboard or Control Interface Option
  • Radar Software
  • Single & Twin Radar Display (PPI)
  • Chart Radar Trial
  • ETD Mode Trial
  • Route Planning Trial
  • Simulation Mode
  • Radar Interswitch Unit
Software Included Options

Standard Radar

(Supplied as standard)

Single Radar Display Enhanced Target Detection (ETD) Mode
  Dual Radar Display Route Planning
  Chart Radar (180 day trial licence) FLIR Camera
  Enhanced Target Detection (180 day trial licence) Conning Display*
  Route Planning (180 day trial licence)  
  Simulation  
Chart Radar Single Radar ECDIS
  Dual Radar Display Enhanced Target Detection (ETD) Mode
  Chart Radar (180 day trial licence) FLIR Camera
  Enhanced Target Detection (180 day trial licence) Conning Display*
  Simulation  
ECDIS with Radar Interlay ECDIS Conning Display*
  Route Planning  
  Simulation  
  ECDIS Radar Interlay  

* For navigation and conning typically a system will exclude a transceiver and antenna and be networked with the chart radar (includes transceiver and antenna) and/or ECDIS.

Transceiver Spec 10kW SharpEye™
Frequency Band X-Band S-Band
Frequency 9,41GHz ±0.03GHz 2.9 - 3.1 GHz (8 selectable channels)
Peak Power 10kW > 170W (200W typical)
Magnetron Life 10,000 HRS typical No Magnetron MTBF > 150,000 HRS
Signal Processing N/A Pulse Compression 660:1
Pulse Length/PRF (S) 55ns/3000Hz *
Pulse length/PRF (M) 230ns/1500Hz *
Pulse Length/PRF (L) 600ns/750Hz *
Receiver Noise 6dB nom. < 4dB nom.
Receiver IF Frequency 60MHz 60MHz
Receiver Bandwidth 6/22MHz 20MHz
Minimum Range < 40m < 40m
Range Resolution S<7.5m M>15m L>30m 15m

*SharpEye™ transmits a non-linear sequence of S, M and L pulses simultaneously. Each transmission is unique, enabling pulse compression.

Antenna Specs 1.3m 1.9m 2.5m 3.9m
Beamwidth (H) 1.8° -3dB 1.25° -3dB 0.95° -3dB 2.0° -3dB
Beamwidth (V) 24.4° 24.4° 24.4° 26°
Antenna Gain > 31dB > 31dB > 31dB > 28dB
Polarisation Horizontal Horizontal Horizontal Horizontal
Sidelobes (±10) <- 30dB <- 30dB < -30dB < -26dB
Sidelobes >10 <- 40dB <- 40dB < -40dB < -32dB
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