The Red Button Under the Cover
You are delivering a 30-foot center console north along the ICW with the owner aboard. At 1430, three miles off Fort Lauderdale in flat calm, you are showing him how the new DSC radio works. He lifts the spring-loaded cover and presses the red button, holding it long enough that the display reads DISTRESS ALERT SENT, nature UNDESIGNATED, and the set switches to channel 70 with the alarm sounding. Nothing is wrong with the boat. The radio's menu offers a CANCEL soft key, an MMSI is programmed and matches the vessel, and your GPS position is on the screen. The nearest Coast Guard sector is 12 miles away and there is heavy recreational traffic around you.
1. What do you do in the next sixty seconds, and what exactly do you say?
Read the worked answer
First, cancel at the set. Use the CANCEL soft key. If the alert has gone out, the set may still offer a cancellation transmission; take it. This is the fastest way to stop the alert resolving into a search-and-rescue case, and it costs seconds.
Second, cancel by voice on channel 16 - the cancellation must reach the same audience the alert reached:
All stations, all stations, all stations. This is [vessel name, call sign, MMSI]. At 1430 I transmitted a DSC distress alert on channel 70 in error. There is no distress. My position is three miles east of Fort Lauderdale, latitude/longitude ___. I am a 30-foot white center console, three persons aboard, all safe. All stations please disregard my distress alert. Out.
Third, stay put, radio on, and guard 16 and 70. Answer the Coast Guard the moment they call. If nothing comes back within a few minutes on 16, do not assume it is over - call the sector by phone to confirm the alert is cancelled at their end.
What not to do: do not switch the radio off, do not leave the area, and do not go quiet. An unanswered distress alert generates aircraft and boats; your job now is to make sure they find a calm boat with an embarrassed owner, not an empty patch of water.
2. The Coast Guard answers on 16 and asks for your MMSI, position, and whether you need assistance. A second station breaks in saying it copied your alert and is proceeding. How do you handle both?
Read the worked answer
To the Coast Guard: give the facts plainly and in the order asked - MMSI, position, nature of the error, number of persons aboard, that no assistance is required, and that you will remain on 16 until released. Confirm the cancellation on air. They may ask you to remain on channel 16 or to make a further broadcast; do it without argument, and note the time.
To the good Samaritan: acknowledge courteously and release them. Something like: 'Station calling, this is [name]. Thank you for responding. The alert was transmitted in error and has been cancelled with the Coast Guard. There is no distress here. You may resume your course. Out.' A vessel that has turned toward you on a real alert should be explicitly stood down, not simply ignored.
Judgement points:
- Do not use MAYDAY RELAY to cancel - that signal is for relaying someone else's distress, not for undoing your own mistake.
- Keep it short and on 16; the frequency is a shared emergency channel, not a place for a long explanation. If the Coast Guard wants detail, they will move you to a working channel.
- Do not blame the owner on air. The station is yours to operate; the error is the station's.
3. The helicopter never launches and the case is closed. What should happen ashore, and how do you prevent a repeat?
Read the worked answer
Ashore:
- Log it. Time of the alert, time of cancellation, stations worked, and confirmation from the Coast Guard that the case is closed. If the sector asks for a written statement or the radio's alert history, provide it.
- Understand the exposure: a properly cancelled false alert is an error; repeated or uncancelled false alerts invite enforcement action and, more seriously, waste assets that someone else needs.
Prevention, in order of effectiveness:
- Physical - the cover exists for a reason. On a delivery with guests aboard, the red button is not a demonstration item. Point at it, explain it, do not let anyone's hand near it.
- Menu settings - confirm the set is programmed to include position and a sensible nature of distress by default, so a real activation is useful and not just a position-less alarm.
- People - brief every guest and crew member on which button is which before the first departure. The frequency of these events is almost entirely a function of how the radio was introduced to the person holding it.