01147nam a2200289Ia 4500 TVU_9177 210423s9999 xx 000 0 und d 0071463186 9780071463188 eng 623.89 S773 The marine distress and safety communications in the digital age US Power Squadrons. Camden, Me. International Marine/McGraw-Hill 2006 viii, 136 p. ill. 24 cm + Includes bibliographical references (p. 128) and index The new digital Global Maritime Distress and Safety System (GMDSS) is revolutionizing emergency communications and international search-and-rescue at sea. Clearly and concisely, this one-of-a-kind guide presents what you should know about using digital marine radios for emergency assistance and enhanced safety Distress signals; Radio in navigation; Navigation US Power Squadrons. United States Power Squadrons Trung tâm Học liệu Trường Đại học Trà Vinh