Search and Rescue.
SAR coordinating communications
Communications necessary for the coordination of ships and aircraft participating in a search and rescue operation.
Super High Frequency (3 to 30 GHz).
Ship Earth Station (SES)
An earth station in the maritime mobile
A station in the terrestrial radio
Operating method in which transmission is made possible alternatively in each direction of a telecommunication channel, for example, by means of manual control (see single
The same frequency used for transmission and reception (simplex).
Standard Marine Communication Phrases.
Safety of Life at Sea. International Convention for the Safety of Life at Sea.
Safety of Life at Sea Convention as adopted by the IMO, and accepted by contracting governments.
Ship Security Alert System. A system fitted under Regulation 6 of SOLAS chapter XI
Single Side Band mode of emission using amplitude modulation, where one sideband is reduced, suppressed or fully removed.
Sea Safety Message. A type of coastal warning referring to hazards which are considered to be of a temporary nature, eg. floating logs, temporary buoys, etc, usually broadcast for a defined period.
Short Safety Related Messaging. A text
Seafarers’ Training, Certification and Watchkeeping (Code and International Convention on).