
Learn principles and history of marine radar and apply relative motion and vector math to support collision avoidance and navigation with tools like parallel indexing ranges and a maneuvering board.
This video describes the fundamental principles of the radar in a broad overview.
This video is maybe more detailed than is helpful, but provides a bit of a deep dive into a few characteristics of radar principles that might help mariners understand their radar set.
This video provides an overview of equipment factors affecting radar performance.
This video provides an overview of external factors affecting radar performance.
This optional video is a deeper dive into factors affecting radar performance for those interested in more details.
This video uses the radar simulator to show FTC and STC adjustments and how they can help you achieve a better radar picture.
This video demonstrates target composition and shadows.
This video uses the Bridgemaster E Radar as an example for transmit and presentation modes.
This video uses the Bridgemaster E Radar to describe vectors and target trails.
This video uses the Bridgemaster E Radar as a showcase for relative vs. true vectors.
This video describes an 8 step tuning process that would work on any radar system.
This video uses the Bridgemaster E Radar to describe menu items and centering process.
This video describes the EBL and VRM functions as well as other menu items on the Bridgemaster E Radar.
This video introduces AIS and ARPA, which are modern tools for collision avoidance.
This video describes acquiring targets for the ARPA using the Bridgemaster E as well as Guard Zones.
Master relative motion to understand how a vessel's course and speed affect distance and collision risk, and explore closest point of approach along with head-on, crossing, and overtaking scenarios.
This video discusses the basics of speed distance and time for later purposes.
This video introduces the maneuvering board, which is something you may or may not choose to use as a boater.
This video discusses the basics of vector math and how it works on the maneuvering board and in radar theory.
This video discusses relative motion and CPA, and how they are important to collision avoidance.
This video does an example problem on a manuevering board to show the importance of relative motion.
This video has a demonstration on the radar to show relative motion.
This is the same demonstration as the last video, but on a maneuvering board.
This is another demonstration in a different situation on the radar.
This is the same situation as the last video, just on the maneuvering board.
This is a final demonstration, for vessels on the same course and speed as you - no relative motion!
This video describes an overview of the Rules we will discuss in this section. Be sure to download the resources for your library as well!
maintain a proper lookout at all times as a system, not a person, using sight, hearing, and all available means such as radar and AIS to assess risk of collision.
Explains rule 6 safe speed for vessels and how radar factors—visibility, traffic density, maneuverability, radar characteristics and limitations, range scale, antenna height, weather, and potential undetected small vessels—shape decisions.
Explore rule 7 on risk of collision and how radar, including long-range scanning and plotting, provides early warning to act when bearing is constant and range decreases.
This demonstration uses the radar simulator to discuss a head on situation at sea.
This demonstration uses the radar simulator to discuss a crossing situation at sea.
This demonstration uses the radar simulator to discuss overtaking situations at sea.
This is an introduction to the key elements of radar navigation.
In this video we discuss fixing your position using the radar.
In this video we give a demonstration of turn ranges on the radar for precision navigation.
In this video we discuss the use of tangent bearings in navigation.
In this video we discuss parallel indexing which is a useful tool in maritime navigation.
This video describes RACON marks.
This video discusses SAR Transponders.
Explore advanced techniques on the maneuvering board, including contact calculations for course, speed, and time, and compute the closest point of approach to avoid or intercept vessels.
This video describes theory behind closest point of approach (CPA).
This video completes a CPA calculation for bearing, time, and range.
This video describes calculating course and speed.
This video demonstrates transfer plotting on the maneuvering board.
This video demonstrates rapid radar plotting methods on the maneuvering board.
This video describes avoidance of vessels with risk of collision.
This video solves similar problems as the last, but using the rapid method.
This video describes intercept calculations.
This video shows a demonstration of trial maneuver and course changes on the relative motion line on radar sets.
This closes the course - thanks for watching!
This course is derived from a commercial course for Radar Observer for professional mariners, but tailored to an audience that suits all sailors and boaters.
The course discusses the following concepts:
Overview of radar theory and factors affecting radar performance.
Operational controls for a radar, demonstrated by the Bridgemaster-E radar set, which is similar to many radar sets in modern navigation.
Fundamentals of relative motion, speed, distance, and time, to help you better understand the power of radar as a navigational and collision avoidance tool.
The Collision Avoidance Regulations (COLREGS) as pertaining to radar.
The use of radar as a navigational tool for marine navigation.
Advanced concepts of maneuvering boards and vector analysis for determining the course, speed, and closest point of approach of a nearby radar target.
This course uses the Bridgemaster-E Radar and a maritime simulator to describe concepts and problems in maritime navigation.
The course is based on the International Maritime Organization's requirements for "Radar at the Operational Level" and is based on domestic USA courses such as "Radar Observer Unlimited" which often cost over $1000 dollars. The course is distilled and targeted for all mariners, but still includes challenging concepts and advanced details about radar and collision avoidance - it is not a cakewalk! The course does not discuss installation, power management, or operation of small recreational radars but instead uses commercial and professional discussions to help you understand radar at a fundamental level - helping you operate ANY radar more efficiently.
The course is presented by Captain Chris Nolan, a licensed mariner at 1600/3000 Tons upon all oceans and a professional maritime instructor at a certified maritime training provider in the United States. Chris also sails as captain of tall ships in the United States and serves as a Coast Guard reservist.