görüntüleme
6:22
AM VLOG #29: COC GMDSS REQUIREMENTS (Issuance & Revalidation)
1:30
The GMDSS Explained
1:05:04
Тесты оборудования ГМССБ, Daily, Monthly And Weekly Tests Of GMDSS Equipment On Board Ships
16:10
GMDSS (PART-2) Functional Requirements & Sea Areas
1:35
GMDSS Radio Operator Course (Online) | Northeast Maritime Online
9:20
GMDSS Sea Areas | H.V. Rajesh
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gmdss course detail | gmdss exam | GMDSS exam detail | gmdss GOC course | GMDSS COURSE
24:25
GMDSS - Introduction and exam details (PART 1)
