FM-4850 Operator’s Manual
DIGITAL SELECTIVE CALLING
Step 2 Go to "SET MMSI".
Step 3 Enter your MMSI number (nine digits).
If you enter a wrong digit, press the BACK key until the wrong digit is
selected, and then enter the correct digit.
Step 4 After you enter the MMSI number, press the Menu/DSC control to save
the number.
Step 5 Enter the MMSI number again, and then press the Menu/DSC control to
save the number.
If you enter a different digit that you entered at Step 3 and press the
Menu/DSC control, automatically return to the Step 3.
4.3 DSC Distress Call
FM-4850 can send and receive DSC distress calls. When FM-4850 receives GNSS
signals, FM-4850 can also transmit the latitude and longitude of the vessel together
with the DSC distress call.
4.3.1 How to Initiate a DSC Distress Call
Note
To transmit a DSC distress call, this vessel’s MMSI number must be entered
into the radio. For information about how to enter the MMSI number, see
section 4.2.2 How to Enter Your MMSI Number.
Initiate a DSC distress call without specifying the nature of
distress
The FM-4850 can transmit a DSC distress call without specifying the following
natural of distress categories: Undesignated, Fire, Flooding, Collision, Grounding,
Listing, Sinking, Adrift, Abandoning, Piracy, and MOB (Man Overboard).
Step 1 Open the cover labeled "DISTRESS".
Step 2 Press and hold the Distress key (about 4 seconds). The unit beeps and
the display shows the time remaining until the distress signal is sent.
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