part i reading skills chapter 1 gmdss introduction 1.1 general 1.1.1 gmdss implementation 1. 1.2 basic concept of the gmdss 1.1.3 gmdss sea areas 1.1.4 gmdss equipment requirements new words and phrases 1.2 sub-systems of gmdss 1.2.1 satellite system 1.2.2 terrestrial system new words and phrases 1.3 gmdss functions 1.3.1 ship to shore distress alert 1.3.2 sh