Type Power source Fundamental frequency, Hz IMO minimum required 1/3 rd octave band level at 1m, db IMO required
fundamental
frequency, Hz
MKT 150/90 Air-driven 90 143 70-200
MKT 150/110 Air-driven 110 143 70-200
MTX 150/130   Electrically driven 130 143 70-200
TK 80 Contactor unit      

 

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