Uniden UM725GBT Owner's Manual page 31

TO CALL ALL-SHIPS:
All-ships calls contact all DSC radios within range of your ship. Only use all-ships calling
in the event of a Safety warning (such as debris in the water) or to request assistance in an
Urgency (any situation where your ship has a serious problem but is not yet in distress).
1. Press the CALL soft key. The CALL menu appears.
2. Use the PUSH/SEL knob to select ALL SHIPS. The
All Ships Call screen appears, showing two options:
SAFETY and URGENCY.
3. Use the PUSH/SEL knob to select either option
and then enter the channel to transmit on. Press
SEND. The next screen displays the type of All
Ships Call sent, the channel the call was sent on,
and a countdown clock. If the radio receives an
acknowledgement, it automatically switches to the
designated response channel.
4. If the countdown clock ends, your radio will generate
another countdown clock. You can either resend or
cancel the call.
TO RESPOND TO CALLS (INDIVIDUAL/GROUP/ALL SHIP):
If your radio receives a DSC call from another station, it sounds an incoming call alarm
and displays the MMSI number of the calling station or group and the transmitting channel
for the call.
Note: This radio does not have the ability to
acknowledge a distress call. Only the Coast Guard
or an authorized Search and Rescue agency can
acknowledge a DSC distress call.
1. Press the STOP ALARM soft keyto stop the alarm.
The radio will return to the main screen with the
channel selected.
2. To speak to the other ship, press and hold the
Push to Talk key on the microphone while talking.
When you are finished talking, release the Push to Talk
key to listen for a response.
Uniden UM725 Radio Owner's Manual
Push to Talk
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