Standard Horizon HX890, Руководство пользователя

Страница: 48 / 116

46
1. Press the [ CH ▼]/[ CH▲ ] key to select “ INDI-
VIDUAL ”, then press the [ SELECT ] soft key
INDIVIDUAL
BACK
DSC SETUP
GROUP
ALL SHIPS
POS REQUEST
POS REPORT
SELECT
DSC BEEP
ON
ON
ON
ON
ON
OFF
BACK
DSC BEEP
ON
ENTER
INDIVIDUAL
2. Press the [ CH ▼]/[ CH▲ ] key to select “ OFF ”.
3. Press the [
ENTER
] soft key to store the
selected setting.
4. Press the [
CLR
] key to return to radio opera-
tion.
To re-enable the ringer tone, repeat the above procedure, pressing the [
CH
▼]/
[ CH▲ ] key to select “ ON ” in step 2 above.
10.5 GROUP CALL
The Group Call feature allows the user to contact a specific group of vessels
(e.g. members of a yacht club) using DSC radios and signal all the group to
automatically switch to the designated channel for voice communications.
This function is very useful for yacht clubs and vessels traveling together to
collectively make announcements on a predetermined channel. Up to 20 group
MMSI numbers may be programmed.
10.5.1 Setting up a Group Call
For this function to operate, the same group MMSI (Maritime Mobile Service
Identity Number) must be programmed into all the DSC VHF radios within the
group of vessels that will be using this feature. To understand Group MMSI
programming, first a ship MMSI has to be understood.
Ship MMSI :
This number is assigned by the FCC, or other organization licensed
to assign ship MMSI numbers. The first three digits called MID (Mobile Identity
Group) of a vessel’s MMSI denote the country where the MMSI is registered.
The last 6 digits are specific to the ships ID.
Ship MMSI Example : If the MMSI is “366123456”, “366” is the MID which
denotes the country and “123456” is the ships MMSI.
Group MMSI :

Group MMSI numbers are not assigned by the FCC or other organizations
licensed to assign ship MMSI numbers.

The first digit of a group MMSI is always set to “0” by 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 ship 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 the members of the group. 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.