Context
To measure the noise, observe the noise values provided on the Noise page in the Diagnostics dialog box.
TipIf you record all the raw data during the noise test, you can repeat the test later using the replay file.
You may wish to make the noise/speed curve under realistic conditions. This means that all relevant vessels systems are in normal use. If you experience very high noise levels, you may wish to repeat the test with "silent ship" settings.
NoteWhen the transducer is fully lowered, the speed of the vessel must not exceed the maximum speed permitted for the hull unit. This maximum speed depends on the physical size of the transducer, the mechanical construction of the hull unit, and how far
down the transducer has been lowered. The System Protection page allows you to define a limit that triggers an alarm if the maximum speed is exceeded. The System Protection page is located in the Installation dialog box.
Illustration:
Read the noise value from the noise circle. Use the mean value of the readouts at 0 degrees (straight up).