Goto Section: 80.1109 | 80.1113 | Table of Contents
Revised as of December 4, 2012
Goto Year:2011 |
§ 80.1111 Distress alerting.
(a) The transmission of a distress alert indicates that a mobile unit
or person is in distress and requires immediate assistance. The
distress alert is a digital selective call using a distress call format
in bands used for terrestrial radiocommunication or a distress message
format, which is relayed through space stations.
(b) The distress alert must be sent through a satellite either with
absolute priority in general communication channels or on exclusive
distress and safety frequencies or, alternatively, on the distress and
safety frequencies in the MF, HF, and VHF bands using digital selective
(c) The distress alert must be sent only on the authority of the person
responsible for the ship, aircraft or other vehicle carrying the mobile
station or the mobile earth station.
(d) All stations which receive a distress alert transmitted by digital
selective calling must immediately cease any transmission capable of
interfering with distress traffic and must continue watch on the
digital selective call distress calling channel until the call has been
acknowledged to determine if a coast station acknowledges the call
using digital selective calling. Additionally, the station receiving
the distress alert must set watch on the associated distress traffic
frequency for five minutes to determine if distress traffic takes
place. The ship can acknowledge the call using voice or narrowband
direct printing as appropriate on this channel to the ship or to the
[ 57 FR 9065 , Mar. 16, 1992, as amended at 68 FR 46980 , Aug. 7, 2003]
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Goto Section: 80.1109 | 80.1113
Goto Year: 2011 |
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