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GX5500SPage 48
11.7 GROUP CALL
This feature allows the user to contact a group of specific vessels (example
members of a yacht club) using DSC radios with Group call function to auto-
matically switch to a desired channel for voice communications.
11.7.1 Setup 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 fea-
ture. The group MMSI is a 9 digit (first digit permanently set to “0”) that will
allow other radios to call your vessel along with others to automatically switch
to a working channel for voice communications. This function is very useful for
yacht clubs and vessels traveling together that want to collectively make an-
nouncements on a predetermined channel.
1. Press and hold down the
[
CALL
(
MENU
)]
key
until “
Radio SetupRadio Setup
Radio SetupRadio Setup
Radio Setup” menu appears.
2. Turn the CHANNEL selector knob to select
“
DSC SetupDSC Setup
DSC SetupDSC Setup
DSC Setup” menu.
3. Press the
[
ENT
]
key, then select “
Group Direc-Group Direc-
Group Direc-Group Direc-
Group Direc-
torytory
torytory
tory” with the CHANNEL selector knob.
4. Press the
[
ENT
]
key, then select “
AddAdd
AddAdd
Add” with the
CHANNEL selector knob.
5. Press the
[
ENT
]
key.
6. Press one of the Keypad keys to enter the first letter
of the name of the group you want to reference in
the directory.
Example: Press the
[
2
(
MEM
)]
key repeatedly to
toggle among the seven available characters asso-
ciated with that key:
22
22
2
Æ
AA
AA
A
Æ
BB
BB
B
Æ
CC
CC
C
Æ
aa
aa
a
Æ
bb
bb
b
Æ
cc
cc
c
Æ
22
22
2
....
If a mistake was made entering in the name, press-
ing the
[
CLR
]
key to delete the wrong character.
7. Press the
[
ENT
]
key to store the first letter in the name.
8. Repeat step 6 and 7 until the name is complete. The name can consist of
up to eleven characters, if you do not use all eleven
characters press the
[
ENT
]
key to move to the next
space. This method can also be used to enter a blank
space in the name. If a mistake was made entering
in the name repeat pressing the
[
H/L
]
key until the wrong character is
selected, then enter the correct character.
9. After the eleventh letter or space has been entered, press and hold the
[
ENT
]
key to advance to the GROUP MMSI (Maritime Mobile Service Iden-