Compass Revision course

Radar revision

Name: Marine Radar Revision Revision
Price: 12.99 GBP
Availability: InStock

Radar revision for small craft navigation, collision avoidance, restricted visibility, plotting, controls, and radar-pilotage decisions.

Independent revision aid only. It does not replace the RYA Radar Course, practical instruction, or onboard familiarisation with your own set.

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Course decision

Is Radar the right next step?

What this is: A self-guided revision companion that explains essential concepts, then helps you practise and test them. It supports—but does not replace—recognised instruction, practical training, assessment or certification. Access is a one-time payment, not a subscription.
Best for: Learners preparing for Radar
Study effort: Self-paced in short sessions; use the module total to plan your own pace.
Included: 9 revision modules with teaching-first lessons, guided practice, topic tests, recall and relevant interactive tools.
Formal qualification?: Independent revision aid only. It does not replace the RYA Radar Course, practical instruction, or onboard familiarisation with your own set.
Usually followed by: Apply radar in advanced navigation
Access: £12.99 once for full revision access; no subscription.

Compass is independent revision, not an instructor-led course or awarding body.

Try 2 free revision modules Full revision access £12.99 See the usual next step

Syllabus map

What this course covers

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The Radar Picture and Its Limits

Free

What radar shows, what it hides, how radar wave propagation affects returns, and why interpretation matters.

Preview module

Controls, Gain, and Clutter

Free

Gain, sea clutter, rain clutter, tuning, range scale, trails, and display set-up.

Preview module

Range, Bearing, VRM, and EBL

Using range rings, variable range markers, electronic bearing lines, and radar fixes.

Preview module

Targets, Reflectors, and Discrimination

Target strength, target definition, reflectors, shadows, and separating close echoes.

Preview module

Radar Plotting and CPA

Relative motion, closest point of approach, target trails, and manual plotting discipline.

Preview module

AIS, MARPA, and Overlays

Using AIS and MARPA alongside radar without over-trusting either.

Preview module

Radar Navigation and Pilotage

Parallel indexing, clearing ranges, contour awareness, and pilotage in poor visibility.

Preview module

Restricted Visibility Radar

Radar use with COLREGs Rule 19 thinking, sound signals, speed, and lookout.

Preview module

Radar Scenario Practice

Decision practice for crossing targets, landfall, harbour approach, and false echoes.

Preview module

Course scope

Independent revision aid only. It does not replace the RYA Radar Course, practical instruction, or onboard familiarisation with your own set.

How to use the guide

Work through each module lesson, test recall with the module quiz, and use the flashcards until the decision checks feel automatic. The content is written for revision and confidence building before formal training, assessment, or official documentation checks.