Instruction manual

PROFICIENCY IN SURVIVAL CRAFT AND RESCUE BOATS OTHER THAN
FAST RESCUE BOATS
14 2
Receiver output
The audio output should be sufficient to be heard in the ambient noise
level likely to be encountered during SAR operations.
In the transmit condition, the output of the receiver should be muted.
Power supply
The source of energy should be a primary battery integrated in the
equipment and may be replaceable by the user. In addition, provision may be
made to operate the equipment using an external source of electrical energy.
The primary battery should have sufficient capacity to ensure 8-hour
operation at its highest rated power with a duty cycle of 1:9. This duty cycle is
defined as 6-second transmission, 6-second reception above squelch opening
level and 48-second reception below squelch opening level.
Primary batteries should have a shelf life of at least 2 years
Labelling
In addition to the general requirements specified in resolution A.694(
17), the following should be clearly indicated on the exterior of the equipment:
- brief operating instructions;
- expiry date for the primary batteries; and
- the following text: "only for emergency communications with
aircraft.
MCA : Radio equipment and searchlights for survival craft, Chapter 12
Siting of equipment
The equipment should be kept in a suitable place ready to be moved into
a survival craft in case of emergency. Where lifeboats using ‘freefall
launching’ techniques are carried, and not provided with a fixed VHF
installations, each should be provided with appropriate means to securely
retain the portable equipment during launching. In ships where the disposition
of superstructures or deck houses is such as to involve substantial fore and
aft separation, all portable radio apparatus should not be located in the same
area of superstructure or in the same deck house. Where the equipment is
additionally used to comply with the appropriate 1999 LSA Regulations for
‘On-board communications and alarm systems’ or for any other purpose,
sufficient sealed primary batteries should be kept at a suitable place ready to
be moved into a survival craft in case of emergency, ideally with any other
items of equipment that may be required in such an eventuality.
Power supply
The source of energy should be integrated in the equipment although
provision may be made to operate the equipment using an external source of
electrical energy. The source of electrical energy should have sufficient