Uniden UM725GBT VHF Marine Radio Owner’s Manual
- June 5, 2024
- Uniden
Table of Contents
Uniden UM725GBT VHF Marine Radio
MAKING A DISTRESS CALL
Lift the red cover. Press and hold the DISTRESS key for three seconds. Your radio transmits your ship’s location every few minutes until you receive a response.
NOTE:
If the radio displays Enter User MMSI, cancel the automatic distress call
and make a normal voice distress call.
Making a Voice Distress Call
Speak slowly – clearly – calmly
For future reference, write your ship’s name & call sign here:
- Make sure your radio is on.
- Press the 16/P key to switch to Channel 16 (156.8 MHz). (If the corner of the display does not show 16, press the 16/P key again until it does.)
- Press the PUSH-TO-TALK key and say: “MAYDAY — MAYDAY — MAYDAY.”
- Say “THIS IS {name of your ship (three times)} and call sign/ship registration number (once).”
- Repeat “MAYDAY {name of your ship}” once.
- Tell where you are: (what navigational aids or landmarks are near, or read the latitude and longitude from your GPS).
- State the nature of your distress (e.g. are you sinking, medical emergency, man overboard, on fire, adrift, etc. ).
- State the type of assistance you need (medical, towing, pumps, etc.).
- Give number of persons aboard and conditions of any injured persons.
- Estimate present seaworthiness of your ship (e.g. how immediate is the danger due to flooding or fire or proximity to shore).
- Briefly describe your ship, giving ship name (e.g. “Blue Duck is 32-foot cabin cruiser, white hull, blue deckhouse”).
- Say: “I WILL BE LISTENING ON CHANNEL 16.”
- End message by saying “THIS IS {name or call sign of your ship}, OVER.”
- Release the PUSH-TO-TALK key and listen.
If you do not get an answer after 30 seconds, repeat your call, beginning at step 3, above.
References
- Maritime Mobile Service Identity (MMSI) | BoatUS
- Marine Radios - Uniden Support
- Maritime Mobile Service Identity (MMSI) | BoatUS
- Uniden – Uniden America Corporation
- Environment and Climate Change Canada - Canada.ca
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