USCG-RADAR-L2.1
Radar principles, limitations and the approved course
USCG-RADAR-M2 · Radar and the Rules · USCG-RADAR-M2-A Radar principles and limitations, the approved course, and Rules 6, 7 and 19 with ARPA.
The approved course starts with physics because every plotting error at sea traces back to not knowing what the set can and cannot see.
AI-drafted catalogue content pending SME review. Radar Observer renewal by sea service depends on the NMC accepting that the position routinely used radar, and the carriage rule turns on inspected status and GRT; verify with the National Maritime Center and your approved course provider before relying on either.