code_of_practice_V3_2019
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9.5 RF COMMUNICATIONS INSTALLATION<br />
9.5.1 All radio communication equipment should be <strong>of</strong> a type which is approved by the relevant authority.<br />
9.5.2 VHF transmission and reception ranges are reliable only within the line <strong>of</strong> sight ranges <strong>of</strong> the aerials.<br />
9.5.3 Aerials should be mounted as high as is practicable to maximise performance. When the main aerial is fitted to<br />
a mast, which is equipped to carry sails, an emergency aerial should be provided.<br />
9.5.4 Masters, Owners and Operators should be aware <strong>of</strong> VHF coverage in the intended area <strong>of</strong> operation. Where the<br />
certainty <strong>of</strong> good VHF coverage in the UK coastal area is in doubt, Masters, Owners and Operators should seek<br />
advice from the Administration on whether Medium Frequency (MF) or other equipment with long range<br />
transmission capability should be carried. (i.e. Mobile Satellite Communications Systems, etc.).<br />
9.5.5 All radio installations should be:<br />
n Located to ensure the greatest possible degree <strong>of</strong> safety and operational availability;<br />
n Protected against the harmful effects <strong>of</strong> water, extremes <strong>of</strong> temperature and other adverse environmental<br />
conditions.<br />
9.5.6 Notwithstanding the provisions <strong>of</strong> Paragraph 9.4, when the electrical supply to radio equipment is from a battery,<br />
charging facilities (which are capable <strong>of</strong> recharging batteries to minimum capacity requirements within 10 hours)<br />
or a duplicate battery <strong>of</strong> capacity sufficient for the voyage should be provided.<br />
9.5.7 The battery electrical supply to radio equipment should be protected against flooding/swamping as far as practicable<br />
and arranged so that radio communications are not interrupted in adverse conditions. When the efficiency<br />
<strong>of</strong> the required protection against flooding/swamping cannot be guaranteed with batteries located below the freeboard<br />
deck, an efficiently protected battery electrical supply to the radio equipment should be provided above<br />
the freeboard deck.<br />
9.5.8 When fully charged, the batteries should provide at least the minimum required hours <strong>of</strong> operation to ensure<br />
effective use <strong>of</strong> the GMDSS installation.<br />
QinetiQ operations<br />
MASS UK Industry Conduct Principles and Code <strong>of</strong> Practice Version 3<br />
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