OICNW Task 1.5.A

Use of echo sounder

MMA Method

In order to satisfy NVIC 12-14 Task 1.5.A , MMA students must:

NVIC Method

See NVIC method.

STCW Competence Knowledge, Understanding, and Proficiency

Plan and conduct a passage and determine position

OICNW-A1.05 Echo-sounders

Ability to operate the equipment and apply the information correctly

Condition Behavior Standard

On a vessel, using an echo sounder that meets IMO performance standards or a part-task trainer that realistically simulates all the functions and controls of an echo sounder and that meets IMO performance standards,

the candidate turns on, tests, and operates the echo sounder.


The candidate:

  1. Turns the system on;

  2. Tests the echo sounder in accordance with manufacturer’s recommendations;

  3. Notes the correct UTC on the echo sounder paper (if fitted);

  4. Ensures that the scale selected is the lowest appropriate for the vessel’s draft and the depth of water of the area of transit; and

  5. Adjusts the sensitivity to obtain proper depth reading on the display and correct trace on the paper (if fitted).