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

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Providers 1
Upcoming dates 2
From $1,100

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

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.

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 →

Schools Offering This Course

Maritime Institute (Training Resources Maritime Institute / TRLMI)
San Diego, United States
View school →
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.