Sec.  80.322   Form of acknowledgement.

   (a) The acknowledgement of receipt of a radiotelegraph distress message is
   transmitted in the following form:

   (1) The distress signal SOS;

   (2) The call sign of the station sending the distress message, sent three
   times;

   (3) The word DE;

   (4) The call sign of the station acknowledging receipt, sent three times;

   (5) The group RRR;

   (6) The message signal SOS.

   (b) The acknowledgement of receipt of a radiotelephone distress message is
   transmitted in the following form:

   (1) The distress signal MAYDAY;

   (2) The call sign or other identification of the station sending the
   distress message, spoken three times;

   (3) The words THIS IS;

   (4) The call sign or other identification of the station acknowledging
   receipt, spoken three times;

   (5) The word RECEIVED;

   (6) The distress signal MAYDAY.