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 TM 11-5895-1847-12&P
0003 00
DESCRIPTION OF THE LIFEBOAT RADIO (LBR)
The 16/6 lifeboat radio (23) is a portable two-way radiotelephone used for on-scene emergency communications
between survival craft and rescue units. The radio is equipped with a five year lithium battery pack, which is operator
replaceable. The radio will operate on either channel 6 or 16. The radio is FCC type accepted and GMDSS listed
(FCC Part 80.1101) as a survival craft two-way VHF radiotelephone apparatus which complies with the 1988
GMDSS Safety Of Life At Sea (SOLAS) amendments. The lifeboat radio should be tested semi-annually using a
battery other than the assigned lifeboat radio battery. Three lifeboat radios are installed on the vessel.
DESCRIPTION OF THE SEARCH AND RESCUE TRANSCEIVER (SART)
The Search and Rescue Transponder (SART) (24) is a battery powered transponder used in an emergency by
survivors of a sinking vessel. The SART must be mounted in the lifeboat one meter above the sea. The signal from
the SART is detected by a 9 ghz radar at a range of five to seven miles using the ship's radar. Aircraft radar can
receive the SART signal flying at 3,000 ft at up to 40 nautical miles. Once activated, the SART will rebroadcast a
very strong response to any interrogating radar. At the same time, a line of 12 dots will appear on the search radar
screen, radiating outwards from the position of the SART. Once the search vessel or aircraft has approached within
one nautical mile of the SART, these dots widen to eventually form a series of concentric circles around the position
of the SART. The SART has a built-in test capability and should be tested monthly. Two SARTs are installed on
the vessel.
0003 00 9
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