Use of the radar plotting aid (D6A)

€200 EUR

Course Type:
STCW ➜ Master (Yachts) - Navigation, Radar and ARPA Simulator
Training School:
Diverso Impex
Split, Croatia
3 days


The course has been designed to meet requirements of STCW95 (Including amendments), section B-1/12 and based on IMO model course 1.07


The course covers theory necessary for understanding how radar work and how to use him

Course content:

  • basic theory and operation of marine radar system
  • data received by radar
  • performance standard for radars
  • effect of radar on magnetic compass
  • dangers of radar antenna radiation
  • strength of echoes depending of target material and weather conditions
  • false echoes
  • equipment and devices for improving radar echoes Racon, Ramark, SART
  • wave length band S and X , benefits and deficiencies
  • international regulations for preventing collisions at sea
  • switching on and adjustment of picture
  • determination of distance by radar
  • accuracy of distance determined by radar
  • ship’s position with 2 or more distances
  • determination of bow angle by radar
  • calculation of true bearing
  • ship’s position with bearing and distance
  • collision avoidance by radar
  • types of radar visualization and picture orientation
  • determining position of the ship and collision avoidance

After successfully completing the course and examinations at the Harbor Master's Office, candidates will receive certificate issued by the Ministry of the Sea, Transport and Infrastructure of the Republic of Croatia.


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Diverso Impex

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Velebitska 123

Tel: (+385) 021453040
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