Sec.  80.329   Safety signals.

   (a) The safety signal indicates that the station is about to transmit a
   message concerning the safety of navigation or giving important
   meteorological warnings.

   (b) In radiotelegraphy, the safety signal consists of three repetitions of
   the group TTT, sent with the individual letters of each group, and the
   successive groups clearly separated from each other. It must be sent before
   the call.

   (c) In radiotelephony, the safety signal consists of the word SECURITE,
   pronounced as in French, spoken three times and transmitted before the call.

   (d) The safety signal and call must be sent on one of the international
   distress frequencies (2182 kHz or 156.8 MHz radiotelephone). Stations which
   cannot transmit on a distress frequency may use any other available
   frequency on which attention might be attracted.

   [ 51 FR 31213 , Sept. 2, 1986, as amended at  69 FR 64674 , Nov. 8, 2004]