Ian Waugh - A Mariner\'s Guide to Marine Communications

The higher the frequency the shorter the wavelength. As frequency doubles, wavelength halves. The ideal antenna has a direct rel ...

Appendix V V Vessel identification (radiO and satellite services) WHENEVER YOU USE MARINE RADIO (VHF, MF or HF) to communicate w ...

When you receive a DSC alert, the MMSI of the transmitting station will show on the screen of your DSC Controller. If a received ...

Appendix VI VI Medical Advice - CIRM message format THE INTERNATIONAL RADIO MEDICAL CENTRE (CIRM) in Rome, Italy, has been provi ...

Appendix VII VII Action in the first RCC to receive a Distress Alert Any RCC receiving a Distress Alert, or a Distress Call & ...

Appendix VIII VIII Daily, weekly and monthly tests and checks Daily Test all DSC equipment. Internal test, without radiating sig ...

Appendix IX IX Frequencies for use in the GMDSS ALL ITEMS OF GMDSS RADIO/SATCOM EQUIPMENT use specific frequencies/ channels for ...

between ships and SAR aircraft (all SAR aircraft are fitted, as a minimum, with VHF Channels 16 and OG - as are survival craft h ...

Marine MF/HF SSB Radio - Key Frequencies DSC Voice Distress, Urgency Distress, Urgency and Safety Alerts and Safety Messages HF ...

International NBDP frequencies for MSI broadcasts The frequencies 4210kHz; 6314kHz; 8416·5kHz; 12579kHz; 16806·5kHz; 19680·5kHz; ...

. c ~ 16('" 140' PO· - 100' 80" 60" 40" 20' O' 40 C /.I ~~ B ~ 75 ' C-l- ~~i~ ,v 0 v- r\.. [1" /'>..< .., I:> / - - Kr- ...

if no reply to your first call, wait :2 minutes before calling again - and 2 minutes more if still no reply; if no reply to 3 ca ...

Appendix X X Radio Watch summary Operating Vessel using Inmarsat for Vessel using HF DSC for area Sea Area A3 coverage Sea Area ...

Appendix XI XI Voyage Communications Plan pro-forma Departure port Procedure Calling/working channel(s) GMDSS Sea Area on depart ...

Index A Accounting Authority Identification Code 209 address book .............................................................. ...

c D bent pipe communications ......................................... ........... ..................... 177 bureau service .... ...

E Distress ............................................................................................................. 2 Alert ...

extended gateway coverage 177 F false alerts .................... .............................................................. ...

I Hydrographer of the Navy IRO hydrometer ...................................................................................... ...

L M tests and checks ..................................................................................... 163 urgency message . ...