Chapter 5: Digital Selective Calling (DSC)
73
Receiving Group Calls
The Ray49 can receive Group Routine Calls from anyone in your prearranged
group.
When a Group Call is received, the LCD alternates among 3 screens displaying the
or MMSI ID of the station in the group initiating the call and that a request for a
change of working channels is being made.
The 3 alternating pages of data are recorded in the Call Log. The envelope icon
(
)
blinks until you accept the call, reject the call, or open the resulting unread
message stored in the Log. See page “Received Calls (Logs)“ on page 79.
To mute the alert tone:
Press
CLR/WX
.
Automatic cancellation takes place after 2 minutes.
To ignore the Group Call:
Press
CLR/WX
a second time. The envelope icon disappears, the call is interrupted
and the normal screen appears on the LCD.
To accept the Group Call:
1. Press
CH/OK
to change channels to the one designated by the caller. The alert
tone is muted and the envelope icon disappears.
2. Press
CH/OK
to return to the standby mode. Establish voice communications
on the designated channel by pressing
PTT
.
If the caller requests that you change to an unsupported working channel the
message INVALID CHANNEL appears on the LCD. If an acknowledgement is sent,
the originating station is sent the message UNABLE TO COMPLY, indicating that
your radio could not make the requested channel change.
REPEATS
D10177-1
GROUP
ROUTINE
GROUP:
036612345
71
GROUP
ROUTINE
CH CHANGE
REQ TO CH68
71
GROUP
ROUTINE
PRESS OK OR
PRESS CLR
71
D10235-1
68
CH HAS BEEN
CHANGED
PRESS [OK]
68
SHIP/SHIP
26 04.2172N
080 09.0933W
AM11:57LOC
