Please note that the Safebridge shop will be upgraded and replaced by Trainingportal. To purchase your online training courses, visit

Radar Basics: Collision Avoidance

For collision avoidance, it is important to receive information on the navigational situation in general, and specific information on certain ships in particular. This course covers the principles of radar plotting and the best practices of ARPA use. The training course has been based on the book “Radar Basics” written by Volker Wenzel and Marcus Wöster.


The Radar Basics: Collision Avoidance course is available for purchase here.

right arrow 16 Course Description

Plotting the target information provided by the ship’s radar can be done manually or automatically by an electronic plotting aid, better known as ARPA. As electronic plotting aids are integrated in modern marine radar systems, manual plotting has almost no relevance in practical navigation anymore. However, having a basic knowledge of manual radar plotting leads to understanding the working principles of an electronic plotting aid and helps in understanding the limits of automated radar plotting.

right arrow 16 Course Objectives

The aim of the course is to enhance the knowledge of radar plotting to build skill and confidence in the use of ARPA during collision avoidance manoeuvres, while being aware of limiting factors.

right arrow 16 Target Audience

Officers who are looking for an easy-to-follow supplement or refresher to their radar and ARPA courses and anyone requiring knowledge of the general features of radar.

right arrow 16 Course Structure

Module 1: Target Plotting

Module 2: ARPA

right arrow 16 Learning Outcomes

Module 1: Provides an overview of available target information and how it is used during the target plotting.
Module 2: Builds on the plotting theory and its implementation into ARAP to enhance the learner’s capability during collision avoidance manoeuvres.

right arrow 16 Prerequisites

Required: Basic nautical knowledge.

Note: It is not necessary for you to have a CoC as a navigational watch officer; however, an understanding of terrestrial and electronic navigation is recommended.

right arrow 16 Course Characteristics

Course Access: 90 days
Timeframe: Approx. 1 hour and 23 min
Language: English
Certificate: Yes (valid indefinite)
Strong Authentication: No
Daily test attempts: 2
Min % of progress on GuideMe to access TestMe: 70%
Min % of passing the TestMe: 70%
Total test time: 60 min

right arrow 16 Technical Requirements

We recommend the use of a wired internet connection when taking this course. Connection via mobile internet is also possible; however, it is considered unstable and might cause the failure of your exam.

Supported Internet Browsers: 

Google Chrome, Mozilla Firefox and Microsoft Edge

Operating Systems:

  • Microsoft Windows
  • Apple macOS
  • Linux,
  • Android
  • Apple's iOS
Important note: For optimized experience we suggest using a desktop browser.

Video not available

In order to add the product to the wishlist you must first create one here