Final answer:
To cancel a distress message, a follow-up transmission indicating the resolution of the emergency situation is sent, allowing other stations to return to normal communication activities.
Step-by-step explanation:
To cancel a distress message, which is a procedure that allows other stations to resume regular service, specific communication protocols must be followed. This process is generally related to maritime or aviation operations where safety is of utmost importance. When a distress message has been satisfactorily resolved, the station that transmitted the original distress call should send a follow-up message to indicate the cancellation. This message must be clear and conform to the communication standards for the respective service, such as maritime or aviation frequencies. The cancellation message enables other stations to understand that the emergency situation has been addressed and that they can return to their normal communication activities.