FM-4850 Operator’s Manual
DIGITAL SELECTIVE CALLING
Step 5 When the radio receives an acknowledgement, an alarm sounds and the
working channel changes to the channel selected in Step 3. Select "OK"
on the screen.
Step 6 Press and hold the PTT key to talk into the handset.
Initiate an individual call by manually entering an MMSI number
Step 1 On the "INDIVIDUAL" page, select "MANUAL ID".
Step 2 Enter the MMSI of your desired individual contact, and then press the
Menu/DSC control to enter the "SELECT CH" page.
Step 3 Select a channel.
Step 4 Press the Menu/DSC control to initiate an individual call.
When CH70 is busy, you can wait without pressing any key until CH70
is idle.
When the CH70 is idle, the radio waits for an acknowledgement.
Step 5 When the radio receives an acknowledgement, an alarm sounds and the
working channel changes to the channel selected in Step 3. Select "OK"
on the screen.
Step 6 Press and hold the PTT key to talk into the handset.
4.4.2 How to Receive an Individual Call
The channel change of your radio has two modes: "AUTO" and "MANUAL". When
you select "AUTO", the radio automatically switch to the designated channel after
10 seconds without user intervention. When selecting "MANUAL", you need to
manually change the channel. For information about how to set the channel change
mode, see section 12.3 Channel Change Mode.
When the channel change mode is "AUTO"
Step 1 When an individual call is received, the alarm sounds. Rotate the
Menu/DSC control to stop the alarm.
The radio screen shows the MMSI of the calling vessel and three soft
keys: "ACCEPT", "REJECT", and "PAUSE". If the requested channel
cannot comply, the screen only shows two soft keys: "REJECT" and
"CANCEL".
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