Raymarine Ray54E - Manual (Page 48)

38 Ray54E VHF Radio
If the caller requests that you change to an unsupported working channel the
message
INVALID CHANNEL appears on the LCD. If an acknowledge is sent,
the originating station is notified you were
UNABLE TO COMPLY with the
channel change request.
Notes: (1) The DSC Call data is stored in the first available slot in the
DSC Call Log, regardless of whether the call is acknowledged.
(2) Pressing the 16/PLUS key cancels the channel change request
and tunes the radio to channel 16.
(3) If 5 minutes elapse before the call is acknowledged or rejected,
the radio automatically declines the incoming Individual Call.
(4) To conform with inland waterways regulations of the Basel
Agreement, DSC functions are disabled when ATIS is active.
5.3 Group Calls
The Group Call feature sends transmissions that are only received by radios
that share a common Group MMSI number, such as a flotilla or racing fleet.
The Ray54E sends Group Routine calls. As with any DSC operation, the
Group Call is made on channel 70.
Transmitting a Group Call
To call another vessel in the group, you must select the Group MMSI number
to contact and the working channel to be used for the Group Call. The Group
MMSI number is selected from a Phonebook list of preprogrammed
numbers specified using the Menu function. Up to three Group ID numbers
can be stored.
1. Press and release the
CALL/MENU key to enter the DSC menu. The
arrow is pointing to
INDIVIDUAL.
2. Rotate the
CH knob until the arrow points to GROUP.