Required installation under the international regulations for preventing collisions at sea 1972(COLREGs).
The fundamental frequency of the horns shall be between 130 – 350 Hz for a vessel greater than 75 mtrs but less than 200 mtrs in length, and 70 – 200 Hz for a vessel 200 mtrs or more in length.
Manually operated and electromagnetic types are available.
Required installation under the international regulations for preventing collisions at sea 1972(COLREGs).
The fundamental frequency of the horns shall be between 130 – 350 Hz for a vessel greater than 75 mtrs but less than 200 mtrs in length, and 70 – 200 Hz for a vessel 200 mtrs or more in length.
Manually operated and electromagnetic types are available.