How to send an Undesignated and Designated Distress message on GMDSS | DonVoyage SeaVlog #004
10:26
What is AIS SART and how to test it? | DonVoyage SeaVlog #003
24:13
VT008 DAILY & WEEKLY TESTS ON SSB MF HF RADIO
10:28
How to test VHF DSC radio
23:27
GMDSS INMARSAT C PRACTICALS
25:44
GMDSS Explanation Video (from 1992), with a few errors, but still okay.
10:42
The Problem With Marine VHF Radios
44:21
Op-Amps - Using Operational Amplifiers
26:34