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GX1256SPage 40
7.8 ADVANCED DSC CALLS
7.8.1 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.
7.8.1.1 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
feature. 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 announcements on a predetermined channel.
1. Press and hold down the
[
CALL/SET
(
MENU
)]
key until
“RADIO SETUP” appears.
2. Press the
[
DOWN
]
key to select “DSC SETUP.”
3. Press the
[
CALL/SET
(
MENU
)]
key, then press the
[
DOWN
]
key to select “GROUP DIR.”
4. Press the
[
CALL/SET
(
MENU
)]
key to enable setting this
item.
5. Press the
[
UP
]
or
[
DOWN
]
key to select “ADD,” then
press the
[
CALL/SET
(
MENU
)]
key.
6. Press the
[
UP
]
or
[
DOWN
]
key to select the first letter of
the name of the group you want to reference in the di-
rectory.
7. Press the
[
CALL/SET
(
MENU
)]
key to store the first let-
ter in the name. Press the
[
CALL/SET
(
MENU
)]
key to
move the cursor one space to the right.
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
[
CALL/
SET
(
MENU
)]
key to move to the next space. This method
can also be used to enter a blank space in the name. To
clear the previous letter, press the
[
H/L
(
POS
)]
key.
9. After the eleventh letter or space has been entered, press
and hold the
[
CALL/SET
(
MENU
)]
key to advance to the
GROUP MMSI (Maritime Mobile Service Identity Num-