Figure 5 . Representative ship EK80 echosounder calibration examples with full beam mapping exercise (left) and calibration results (right) displayed. Five EK80 calibrations are shown: (a) 12-22 kHz, (b) 34-45 kHz, (c) 45-95 kHz, (d) 90-170 kHz, (e) 160-260 kHz pulses. (f) show EC150-3C ADCP / echosounder system calibration. Operated as echosounder with 138-162 kHz broadband pulses. WC57.2 is used for (a) and (b), WC35 is used for (c), WC38.1 is used for (d), (e), (f).
