Uniden UM385 Owner's Manual page 31

When another station requests your current position, the radio displays the following screen:
Receiving a position request (Position Reply)
To send your current position to the other station, select Reply; the radio transmits your
latitude and longitude to the other station. If you select Reply but the radio does not have
valid GPS data, it transmits the reply code with No Position.
To reject the position request, select Cancel.
If you want the radio to automatically transmit your current position whenever it receives
Enabling automatic position reply
a position request, you can enable automatic position reply. Most boaters activate
automatic position reply for safety reasons or because they subscribe to a marine towing
service. Sometimes - for example, in some competitive situations - you may not want other
stations to get your position without your manual confirmation
1. Press and hold CALL-MENU to display the normal menu.
2. Select Setup and then POS Reply.
3. Choose Auto and press ENT-1W/25W. The radio will automatically transmit your
position when it receives a position request.
4. To disable automatic position reply, repeat the steps above and select Manual.
If your radio is connected to a GPS receiver, you can send your boat's position to someone
Sending your own position (Position Send)
else. If you are requesting assistance or using an all ships call to give a safety warning, you
can send your current position so other stations know where you are:
1. Press CALL-MENU to display the call menu.
2. Select Position Send.
3. The radio displays the names listed in your directory; use CHANNEL UP and
CHANNEL DOWN to choose the directory entry you want to contact and press ENT-
1W/25W. If you want to contact a station that is not in your directory, select Manual.
The radio prompts you to enter the MMSI number you want to call. Enter the MMSI
number the same way you enter directory entries (see page 22). Enter all nine
digits and press ENT-1W/25W.
4. The radio displays the MMSI number you are about to contact and asks you to
confirm. If you want to transmit your position to the displayed MMSI number,
select Send. To cancel the transmission, select Cancel.
5. The radio transmits your MMSI number, your longitude, and your latitude to the
other station.
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