Foghorn, designed to provide 2 nautical miles omni-directional coverage. For man-made offshore structures and in line with IALA regulatory requirements. Can be supplied as a combined main/secondary (2/½ NM) foghorn together with duplicated controls in the Navaid Central Control Panel (NCCP).


Key features

  • Reliable marine foghorn, low cost of ownership
  • Operating voltage and code control provided from Navaid Central Control Panel (NCCP)
  • Monitoring system integrated in Navaid Central Control Panel (NCCP)
  • Offshore coated seawater resistant light alloy body
  • Can be supplied as a main/secondary(2/½ Nm) foghorn together with duplicated controls in the Navaid Central


  • Complies with IALA regulation; O-139 The marking of man-made offshore structures – Dec. 2013; chapter 2, paragraph – Fogsignal
  • Complies with UK Department of Energy and Climate Change; Standard marking schedule for offshore installations – April 2011; chapter 4 – secondary fog signal
  • Complies with Mining regulations of the Netherlands – Dec. 2002, Article 5.2 – Fogsignal
  • Complies with US Coast Guard; 33 C.F.R. Part 67 – Aids to navigation on artificial islands and fixed structures

Performance characteristics

  • Morse code ‘U’ every 30 s from Navaid Central Control Panel (NCCP)
  • Alternative codes available; USCG 2 s blast every 20 s (2 s sound, 18 s silence)
  • Usual range main foghorn: 2.0 NM (134 dB(A) at 1 m)
  • Horizontal sound output: 360°

Electrical characteristics

  • Operating voltage: 190 Vac;
    860 Hz from Navaid Central Control Panel (NCCP)
  • Power consumption: 100 W peak (Classic NCCP); 80 W peak max (Digital modular NCCP)
  • Connection details: max. 4 mm²; one M25x1.5 cable gland entry
  • Earth connection: internal 4 mm² and external M6

Physical characteristics

  • Dimensions (L x W x H):
    678 x 464 x 1900 mm
  • Weight: 175 kg
  • Degree of protection: IP66
  • Operating temperature range:
    –55 °C to +55 °C

System design, control and monitoring

  • Control and monitoring via separate control panel (see separate product information sheet)