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The High Frequency Marine Mammal Monitoring system is
utilized in conjunction with Navy Low Frequency Active
towed SONAR arrays to alert operators to the presence of
marine mammals - a situation which requires the
cessation of all SONAR operations to avoid serious
physical harm to the animals.
Due to the high power levels and
potential harm associated with these large, low
frequency active SONAR arrays, HFM3 is now a court
ordered component of all such SONAR systems and is
currently operational on two military vessels.
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