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The narrow-band system can operate in 6 frequency bands, from 18-333kHz ( 12kHz,18kHz, 38kHz, 70kHz, 120kHz,200kHz and 333kHz), simultaneously. This system is permanently mounted on the ships drop keel. Where the system is not essential, the sensor will be operated continuously regardless of science objectives unless specifically advised otherwise.
The Simrad EK60 is utilised for biomass estimation within the water column.