COURSE DESCRIPTION: This course deals with basic theory and operation of a marine radar system – for this part, the principles underlying how the radar works will be discussed, including radio propagation, the types of radars used on-board ship and the factors which affects detection, display and measurement of targets.
Also included are the step by step procedure of setting up the radar in accordance with the manufacturer’s instructions including how to optimize the display. Signs and symbols associated with the operational buttons or controls are also included in the topic.
To further enhance the knowledge and technical skills of the students, this course also includes activities of radar plotting in determining the relative motion triangle in order to determine the direction of relative motion, the speed of the relative motion, true course and speed of the target including the actions to be taken in order to avoid collision with the other target by reduction of speed or alteration of course.
Actual use of RADAR/ARPA will also enable students to appreciate, observe and decide for themselves how to take actions in order to avoid collision in compliance with COLREGs
COMPETENCY:
A-II/1 F1.C3 : Use of RADAR and ARPA to maintain safety of navigation
KNOWLEDGE, UNDERSTANDING AND PROFICIENCY
A-II/1 F1.C3.KUP1: Radar Navigation
1. Knowledge of the fundamentals of radar and Automatic Radar Plotting Aids (ARPA)
2. Ability to operate and to interpret and analyse information obtained from radar including the following: a. Performance:
.1 factors affecting performance and accuracy
.2 setting up and maintaining displays
.3 detection of misinterpretation of information, false echoes, sea return, etc., Racons and SARTs
b. Use:
.1 range and bearing course, speed of other ships time and distance of closest approach of crossing, meeting overtaking ships
.2 identification of critical echoes; detecting course and speed changes of other ships; effect of changes in own ships course or speed or both
.3 application of the International Regulations for Preventing Collision at Sea 1972 as amended
.4 plotting techniques and relative and true motion concepts
- Teacher: Leandro Villosillo