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GX1200E
9.6 GROUP CALL
This feature allows the user to contact a group of specific vessels (example
members of a yacht club) with a group MMSI number using the group call
function to automatically switch to a desired channel for voice communi-
cations. This function is very useful for yacht clubs and vessels traveling
together that want to collectively make announcements on a predetermined
channel. The
GX1200E
can store up to 20 group call entries.
9.6.1 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 will be using 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
6 digits are specific to the ships ID.
Ship MMSI Example
: If your MMSI is
“366123456”, “366” is MID which denote the country and “123456” is the
ships ID for you.
Group MMSI
:
Group MMSI numbers are not assigned by the FCC or other organiza-
tions licensed to assign ship MMSI numbers.
The first digit of a group MMSI is always set to “0” by the international
rules. All Standard Horizon radios are preset so when programming a
group MMSI the first digit is set to “0”.
The USCG recommends programming the MID of a ships MMSI into the
second, third and fourth digits of the group MMSI as it denotes the area
the ship is located in.
The last 5 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 may program in the same group MMSI. If this
happens, simply change one or more of the last 5 digits of the group
MMSI.
1. Press and hold the
key until “
SETUP
MENU
” appears.
-SETUP MENU-
GENERAL SETUP
CH FUNC SETUP
DSC SETUP
-SETUP MENU-
GENERAL SETUP
CH FUNC SETUP
DSC SETUP
2. Press the
/
keys to select “
DSC
SETUP
” menu.
3. Press the
soft key, then select
“
GROUP DIR
” with the
/
keys.
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