The duration of each dash is 4 seconds, and the
duration of the interval between two consecutive
dashes is 1 second. The radiotelephone alarm signal
consists of two tones transmitted alternately over
periods of from 30 seconds to 1 minute.
The use of any of the foregoing signals except for
the purpose of indicating that a vessel or seaplane is
in distress, and the use of other signals that may be
confused with any of the previously mentioned signals
Attention is drawn to the relevant sections of the
Merchant Ship Search and Rescue Manual, and the
following signals:
A piece of orange-colored canvas with either a
black square and circle or other appropriate
symbol (for identification from the air)
A dye marker
Signals used in situations of distress and search
and rescue are shown in figure 6-2 (Distress) and
are prohibited.
figure 6-3 (Lifesaving signals).
Figure 6-3.—Lifesaving signals (page 1 of 4).
6-14
