Radar Observer (Unlimited) (RADU) (MARINS-399) (35 Hours)

Find providers, compare upcoming dates and prices, and book directly with the school.

Providers 1

Upcoming dates 2

From $1,100

WHAT IS THIS COURSE?

Course Overview

MARINS-399 is the comprehensive 35-hour Radar Observer (Unlimited) course. Meets full USCG and STCW A-II/1 requirements for unlimited navigational watch on all vessel types.

Prerequisites

Valid USCG Officer license (OOW or higher)
Bridge watch competency (sea service or training)
Medical examination (USCG approval)
English proficiency

What You'll Learn

Radar fundamentals and modern system operation
Integrated Navigation Systems (INS) integration
ARPA advanced features and target management
Collision avoidance rule application
Navigation in restricted waters and traffic schemes
Search and rescue operations
Safety procedures and emergency response
Simulator-based practical assessment

COURSE AT A GLANCE

Key Facts

Duration

35 hours (approx. 1 week intensive)

Typical Cost

$1,100

Issuing Body

USCG

Certificate

Radar Observer (RADU / MARINS-399)

Revalidation: Five-year endorsement; renewal via sea service or retraining.

UPCOMING DATES

Available Course Dates

Date	School	Location	Price
28 Sep 2026 – 2 Oct 2026	Maritime Institute (Training Resources Maritime Institute / TRLMI)	San Diego, United States	$1,100	Book →
7 Dec 2026 – 11 Dec 2026	Maritime Institute (Training Resources Maritime Institute / TRLMI)	San Diego, United States	$1,100	Book →

Important: Course dates, availability and prices shown are indicative only and were gathered from providers' public websites. Always confirm current dates, availability and pricing directly with the training provider before booking. All bookings are made directly with the provider — YachtSync is not a party to any booking. Course information is for guidance only.