What should you do after sending a false distress alert on MF?

When a false distress alert is sent over MF, the appropriate protocol is to make a voice announcement on 2182.0 kHz to cancel the alert. This frequency is designated for distress and safety communications and is monitored by vessels and maritime authorities for emergency transmissions. By making an announcement, the sender can effectively inform other mariners and relevant authorities that the previous alert was not valid, thereby reducing any unnecessary concern or response initiated by the false alert.

In maritime communication protocols, clarifying the false alert is critical to ensure that resources are not wasted on a non-existent emergency and to maintain safety in the maritime environment. This procedure aligns with international regulations that are designed to preserve the integrity of distress communications.

Other options suggest actions that either do not address the need to cancel the alert specifically or could further complicate the situation, such as sending additional alerts when the primary need is to clarify that there is no distress. Making the voice announcement on 2182.0 kHz is the standard and most effective method for canceling a false distress signal.