Cart0 items
Total price $0


SIMRAD HALO 4 is a four-foot radar antenna of an open type. It is intended for use on small commercial vessels and pleasure yachts, boats. The device uses the beam sharpening technology, which ensures a clear and qualitative separation of targets. HALO 4 RADAR has an antenna radiation angle of 1.8 °. The device is characterized by excellent indicators of detection of small and remote targets at a distance of 64 nautical miles with a minimum amount of side noise, as well as a low level of radiation that allows this model to be used in places where ships are crowded (at anchorages, berths and others). HALO 4 is equipped with an integrated InstantOn ™ function that will allow you to quickly perform a cold start (in just 16-25 seconds), and the use of solid-state technology contributes to rapid warm-up from a cold start, without losing performance. Thanks to the built-in Ethernet interface, the radar is easily integrated into the navigation system created on the ship.

  • Antenna of open type 4 feet in length
  • Beam Sharpening Technology
  • Controlling the separation of objects
  • Dual working range
  • Can be used with multifunction displays SIMRAD series NSS, NSO
  • Innovative signal processing in Harbour, Offshore, Weather, Bird and Custom modes
  • Antenna speed is 48 rpm
  • InstantOn ™ feature
  • Function MARPA tracking purposes: up to 10 (20 with a dual range)
  • Power supply from 12 or 24 V on-board network
  • Built-in Ethernet interface
  • Unique LED-backlight (blue) with brightness adjustment
  • Low power consumption
  • Low electromagnetic radiation


  • Cable length: 20m / 10m (optional)
  • Technology: X-band transmitter and radar compression technology
  • Target detection range: 91.5m to 64 nautical miles
  • Max. output power: 25W ± 10% for any transmission condition (up to 10% at maximum speed)
  • Safe Radiation Distance: 100W / m2
  • Humidity: at + 40 ° C - 93%
  • Operating temperature range: -25 ° to + 55 ° C
  • Waterproof: IPX6
  • Dimensions (WxH), mm: 1,220x448
  • Weight: 27.6 kg (without package); 18.75 kg (base); 4.9 kg (antenna); 1.6 kg (RI-12); 2.3 kg (cable, 20 m)
  • Power consumption: 150W (max with wind speed 70 knots), 40W (with average wind speed), 6.5W (standby mode)
  • Supply voltage of the on-board network: 12/24 (min-max: 10.8 - 31.2) DC
  • The horizontal width of the beam: 1.8 ° ± 10% (-3 dB width), 1.6 / 1.6 / 1.2 ° with the active mode Beam Sharpening
  • Beam width in vertical: 25 ° + 20% (-3 dB width)
  • Noise factor: 5 dB
  • Antenna rotation speed: 24-48ppm (at least 20ppm at a wind speed of 70 knots)
  • Vibration level: 2-100Hz and 20G, 100,000 revolutions
  • Operating frequency of the radar - X-Band: 9.410-9.495GHz
  • Ethernet: 10/100 BaseT, NMEA2000 / NMEA0183

Useful articles

Navigational information about local waters

Navigational information about local waters

When the Navigator is appraising his passage plan, he/she should be prepared to look for the relevant information in the appropriate reference books.