9 Power Supply
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Resolutions - Maritime Safety Committee - Resolution MSC.80(70) - Adoption of New Performance Standards for Radiocommunication Equipment - (adopted on 8 December 1998) - Annex 2 - Recommendation on Performance Standards for On-Scene (Aeronautical) Two-Way VHF Radiotelephone Apparatus for Fixed Installations - 9 Power Supply

9 Power Supply

  9.1 The radio installation should be powered from the ship's main source of electrical energy. In addition, it should be possible to operate the installation from an alternative source of electrical energy.

  9.2 Alternatively, the source of energy may be a primary battery integrated in the equipment and may be replaceable by the user.

  9.3 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.

  9.4 Primary batteries should have a shelf life of at least 2 years.

Parent topic: Annex 2 - Recommendation on Performance Standards for On-Scene (Aeronautical) Two-Way VHF Radiotelephone Apparatus for Fixed Installations
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