Air horn (for ships > 75 m and < 200 m)
MAKROFON M125/130BZVE(E)H
ZÖLLNER
class requirements:
limits of fundamental frequencies: 130 - 350 Hz
intensity in 1/3rd-octave band level at 1 m distance
referred to 2x10-5 N/m˛: 138 dB
SHIP CLASS II - SHIP LENGTH 75 BUT LESS THAN 200 METRES
class requirements:
limits of fundamental frequencies: 130 - 350 Hz
intensity in 1/3rd-octave band level at 1 m distance
referred to 2x10-5 N/m˛: 138 dB
