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Transmission Modes WAVECOM Decoder W74PC, W-PCI/e, W-CODE, W-CLOUD Manual V9.1.0
FMS-BOS Settings
To apply or manipulate the various FMS-BOS stations select Options/FM-BOS Settings…
A table of FMS-BOS users is stored in \config\FmsbosSettings.xml.
GMDSS/DSC-HF
GMDSS (Global Maritime Distress and Safety System) is a worldwide system for handling maritime emer-
gency and safety transmissions. Part of the system is DSC (Digital Selective Calling). Each user of the
GMDSS is assigned a nine-digit number (MMSI – Maritime Mobile Service Identity) from the mobile mari-
time service. 3 digits of this number are used as a country code.
DSC is used on HF and VHF. On HF the system is working with 100 baud and a shift of 170 Hz.
Selecting Options/Display offers the option of an ASCII or RAW bits display.
The complex structures of the DSC are described in detail in the ITU-Rec. M.493-11.
GMDSS/DSC-VHF
GMDSS (Global Maritime Distress and Safety System) is a worldwide system for handling maritime emer-
gency and safety transmissions. Part of the system is the DSC (Digital Selective Calling).
Each user of the GMDSS is assigned a nine-digit number (MMSI – Maritime Mobile Service Identity) from
the mobile maritime service. 3 digits of this number are used as a country code.