GX1280S Page 41
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] key until
“RADIO SETUP” menu appears.
2. Turn the CHANNEL selector knob to select “DSC
SETUP” menu.
3. Press the [CALL/SET] key, then select “GROUP
DIR” with the CHANNEL selector knob.
4. Press the [CALL/SET] key, then select “ADD” with
the CHANNEL selector knob.
5. Press the [CALL/SET] key.
6. Turn the CHANNEL selector knob to scroll through
the first letter of the name of the group you want to
reference in the directory.
7. Press the [CALL/SET] key to store the first letter
in the name. Press the [CALL/SET] 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] 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] key.
9. After the eleventh letter or space has been entered, press the
[CALL/SET] key to advance to the GROUP MMSI (Maritime Mobile Ser-
vice Identity Number) number entry.