Furuno FM-4000 - Manual (Page 46)

FM-4000 Page 46
11.7 GROUP CALL
This feature allows the user to contact a group of specific vessels (example
members of a yacht club) that have DSC radios with Group call function to
automatically switch to a desired channel for voice communications.
11.7.1 Setting up a Group Call
For this function to operate, the same Group MMSI must be programmed into
all the DSC VHF radios within the group of vessels that use this feature. To
understand about Group MMSI programming, first a Ship MMSI has to be
understood.
Ship MMSI: The first three digits called a MID (Mobile Identity Group) of a Ship
MMSI denote the country the ship registered for a MMSI. The last six digits are
specific to the Ships ID.
Ship MMSI Example: If your MMSI is “366123456”, for example, “366” is the
MID, which denotes the country, and “123456” is the ID of your ship.
Group MMSI:
ˆ
Group MMSI numbers are not assigned by the FCC or other organizations
licensed to assign Ship MMSI numbers.
ˆ The first digit of a Group MMSI is always set to “0” in accordance with
international regulations. All FURUNO radios are preset so when program-
ming a Group MMSI the first digit is set to “0”.
ˆ The USCG recommends programming the MID of a Ship MMSI into the
second, third and fourth digits of the Group MMSI as it denotes the area
the ship is located.
ˆ The last five digits are decided upon by persons in the Group. This is an
important step as all radios in the group must contain the same Group
MMSI so they can be contacted by each other. There is a chance that
another group of vessels have the same Group MMSI as yours. If this
happens, simply change one or more of the last five digits of the Group
MMSI.
1. Press and hold down the [CALL(MENU)] key
until the “Radio Setup Radio Setup Radio Setup Radio Setup Radio Setup ” menu appears.
2. Turn the CHANNEL selector knob to select the
“DSC Setup DSC Setup DSC Setup DSC Setup DSC Setup ” menu.
3. Press the [ENT] key, then use the CHANNEL
selector knob to select “Group Directory Group Directory Group Directory Group Directory Group Directory .”
4. Press the [ENT] key, then select “Add Add Add Add Add ” with the
CHANNEL selector knob.
5. Press the [ENT] key.