John Wiley & Sons Inc VHF Companion 2nd edition

VHF Companion 2nd Edition features 24 splash proof cards covering every type of radio call - from Mayday to calling another boat or shore station. Also Sara Hopkinson covers DSC - by pushing the red button you can automatically summon help and transmit your position encoded in the message. This 2nd edition contains all relevant updates including the latest technology developments and VHF protocols. Autorid: Sara Hopkinson