Goto Section: 80.323 | 80.325 | Table of Contents

FCC 80.324
Revised as of October 1, 2008
Goto Year:2007 | 2009
  Sec.  80.324   Transmission of distress message by station not itself in distress.

   (a) A mobile station or a land station which learns that a mobile station is
   in distress must transmit a distress message in any of the following cases:

   (1) When the station in distress cannot transmit the distress message.

   (2) When the master or person responsible for the ship, aircraft, or other
   vehicle not in distress, or for the land station, believes that further help
   is necessary.

   (3) When, although not in a position to assist, it has heard a distress
   message which has not been acknowledged. When a mobile station transmits
   such a distress message, it must notify the authorities who may be able to
   assist.

   (b) Transmission must be made on the international distress frequencies or
   on any other available frequency on which attention might be attracted.

   (c) Transmission of the distress message must always be preceded by the call
   indicated below, which must itself be preceded whenever possible by the
   radiotelegraph or radiotelephone alarm signal. This call consists of:

   (1) When radiotelegraphy is used:

   (i) The signal DDD SOS SOS SOS DDD:

   (ii) The word DE;

   (iii) The call sign of the transmitting station, sent three times.

   (2) When radiotelephony is used:

   (i) The signal MAYDAY RELAY, spoken three times;

   (ii) The words THIS IS;

   (iii) The call sign or other identification of the transmitting station,
   spoken three times.

   (d) When the radiotelegraph alarm signal is used, an interval of two minutes
   must  be  allowed,  whenever  this is considered necessary, before the
   transmission of the call mentioned in paragraph (c)(1) of this section.


Goto Section: 80.323 | 80.325

Goto Year: 2007 | 2009
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