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- Q17135018 subject Q6898063.
- Q17135018 subject Q7850960.
- Q17135018 subject Q8655023.
- Q17135018 abstract "Very High Frequency (VHF) Survival Craft Transceivers (SCTs) are lightweight, portable, two-way, handheld VHF transceivers capable of radiotelephone on-scene communication between rescue units and the survival craft. Essentially these are hand-held VHF radio's that are used in any survival craft, such as a life boat or life raft. SCT's with re-chargeable type batteries may be used for on-board communications as well.The International Maritime Organization (IMO) requires the following from SCT's: Must be able to be operated by unskilled personnel Must be able to transmit and receive on 156.8 MHz (Channel 16) and 156.3 MHz (Channel 6) Withstand a drop of 1 meter on a hard surface Watertight to a depth of 1 meter for 5 minutes Power Minimum of 0.25 watts A power reduction switch to less than 1 watt must be available where power exceeds 1 watt Antenna must be vertically polarized and omni-directional Battery power capacity for 8 hours on a 1:9 duty cycleThe SCT's used for everyday operations have a rechargeable NiCad battery, and some radios that are strictly SCT's use a non-rechargeable lithium battery pack. These batteries must be replaced on or before the manufactures marked expiration date. SCT's are required to be capable of radiating a minimum Radio Frequency (RF) power of 250mW (milliwatts) A switch must be provided on the SCT if the transmitter has a power excess of one watt, this will allow the operator to reduce the power to less than one watt, resulting in a reduced battery power loss. Along with other requirements the IMO has made it mandatory that the antenna be vertically polarized, allowing all radio antennas to be within the same plane, this ensures that the energy transfer from each radio is high. The IMO requires that cargo ships between 300 and 500 gross tons must carry two SCT's. Passenger ships carrying more than 12 passengers on international voyages, and cargo ships of 500 tons or more must carry three SCT's.".
- Q17135018 thumbnail VHFSurvivalCraft.jpg?width=300.
- Q17135018 wikiPageWikiLink Q1474334.
- Q17135018 wikiPageWikiLink Q1474493.
- Q17135018 wikiPageWikiLink Q152466.
- Q17135018 wikiPageWikiLink Q193760.
- Q17135018 wikiPageWikiLink Q201054.
- Q17135018 wikiPageWikiLink Q2176348.
- Q17135018 wikiPageWikiLink Q2313348.
- Q17135018 wikiPageWikiLink Q25236.
- Q17135018 wikiPageWikiLink Q2798065.
- Q17135018 wikiPageWikiLink Q6898063.
- Q17135018 wikiPageWikiLink Q7850960.
- Q17135018 wikiPageWikiLink Q846267.
- Q17135018 wikiPageWikiLink Q8655023.
- Q17135018 wikiPageWikiLink Q898377.
- Q17135018 comment "Very High Frequency (VHF) Survival Craft Transceivers (SCTs) are lightweight, portable, two-way, handheld VHF transceivers capable of radiotelephone on-scene communication between rescue units and the survival craft. Essentially these are hand-held VHF radio's that are used in any survival craft, such as a life boat or life raft.".
- Q17135018 label "Survival Craft Transceiver".
- Q17135018 depiction VHFSurvivalCraft.jpg.