An amateur radio operator in distress may:

In a life-threatening distress situation, the primary and absolute goal is to get help by any means necessary. Amateur radio regulations universally recognize that saving a life supersedes normal licensing rules. Therefore, an operator in distress is permitted to use any means of radiocommunication available to attract attention and request assistance. Distractors suggesting that distress calls are limited to Morse code, specific emergency channels, or only the bands the operator is normally authorized to use are incorrect. When in grave and imminent danger, you may use any frequency, any mode, and any equipment you can access to make contact.