Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Marine_VHF_radio> ?p ?o }
- Marine_VHF_radio abstract "Marine VHF radio refers to the radio frequency range between 156.0 and 162.025 MHz, inclusive. In the official language of the International Telecommunication Union the band is called the VHF maritime mobile band.Marine radio equipment is installed on all large ships and most seagoing small craft. It is also used, with slightly different regulation, on rivers and lakes. It is used for a wide variety of purposes, including summoning rescue services and communicating with harbours, locks, bridges and marinas, and operates in the very high frequency (VHF) range, between 156 and 162.025 MHz. Although it is widely used for collision avoidance, its use for that purpose is contentious and is strongly discouraged by some countries, including the UK.A marine VHF set is a combined transmitter and receiver and only operates on standard, international frequencies known as channels. Channel 16 (156.8 MHz) is the international calling and distress channel. Transmission power ranges between 1 and 25 watts, giving a maximum range of up to about 60 nautical miles (111 km) between aerials mounted on tall ships and hills, and 5 nautical miles (9 km; 6 mi) between aerials mounted on small boats at sea level. Frequency modulation (FM) is used, with vertical polarization, meaning that antennas have to be vertical in order to have good reception.Modern-day marine VHF radios offer not only basic transmit and receive capabilities. Permanently mounted marine VHF radios on seagoing vessels are required to have certification of some level of "Digital Selective Calling" (DSC) capability, to allow a distress signal to be sent with a single button press.Marine VHF mostly uses "simplex" transmission, where communication can only take place in one direction at a time. A transmit button on the set or microphone determines whether it is operating as a transmitter or a receiver. Some channels, however, are "duplex" transmission channels where communication can take place in both directions simultaneously when the equipment on both ends allow it (full duplex), otherwise "semi-duplex" is used. Each duplex channel has two frequency assignments. Duplex channels can be used to place calls on the public telephone system for a fee via a marine operator. When full duplex is used, the call is similar to one using a mobile phone or landline. When semi-duplex is used, voice is only carried one way at a time and the party on the boat must press the transmit button only when speaking. This facility is still available in some areas, though its use has largely died out with the advent of mobile and satellite phones. Marine VHF radios can also receive weather radio broadcasts, where they are available.".
- Marine_VHF_radio thumbnail Maritime_VHF_Sailor_type.jpg?width=300.
- Marine_VHF_radio wikiPageExternalLink vhfchanl.html.
- Marine_VHF_radio wikiPageExternalLink canliyayin.htm.
- Marine_VHF_radio wikiPageExternalLink vhf.htm.
- Marine_VHF_radio wikiPageExternalLink sched1.
- Marine_VHF_radio wikiPageExternalLink mgn_324.pdf.
- Marine_VHF_radio wikiPageExternalLink ?pageName=mtBoater.
- Marine_VHF_radio wikiPageExternalLink ?pageName=mtVhf.
- Marine_VHF_radio wikiPageExternalLink www.vhfradio.co.nz.
- Marine_VHF_radio wikiPageID "508181".
- Marine_VHF_radio wikiPageLength "28352".
- Marine_VHF_radio wikiPageOutDegree "57".
- Marine_VHF_radio wikiPageRevisionID "674719027".
- Marine_VHF_radio wikiPageWikiLink 2182_kHz.
- Marine_VHF_radio wikiPageWikiLink Antenna_(radio).
- Marine_VHF_radio wikiPageWikiLink Association_of_American_Railroads.
- Marine_VHF_radio wikiPageWikiLink Automatic_Identification_System.
- Marine_VHF_radio wikiPageWikiLink Automatic_Transmitter_Identification_System_(marine).
- Marine_VHF_radio wikiPageWikiLink Boat.
- Marine_VHF_radio wikiPageWikiLink Bridge.
- Marine_VHF_radio wikiPageWikiLink Category:Marine_electronics.
- Marine_VHF_radio wikiPageWikiLink Category:Maritime_communication.
- Marine_VHF_radio wikiPageWikiLink Category:Navigational_equipment.
- Marine_VHF_radio wikiPageWikiLink Category:Rescue_equipment.
- Marine_VHF_radio wikiPageWikiLink Channel_(communications).
- Marine_VHF_radio wikiPageWikiLink Channel_16_VHF.
- Marine_VHF_radio wikiPageWikiLink Continuous_marine_broadcast.
- Marine_VHF_radio wikiPageWikiLink Digital_Selective_Calling.
- Marine_VHF_radio wikiPageWikiLink Duplex_(telecommunications).
- Marine_VHF_radio wikiPageWikiLink English_language.
- Marine_VHF_radio wikiPageWikiLink Frequency_modulation.
- Marine_VHF_radio wikiPageWikiLink GMDSS.
- Marine_VHF_radio wikiPageWikiLink GOFREP.
- Marine_VHF_radio wikiPageWikiLink Global_Maritime_Distress_Safety_System.
- Marine_VHF_radio wikiPageWikiLink Global_Maritime_Distress_and_Safety_System.
- Marine_VHF_radio wikiPageWikiLink Global_Positioning_System.
- Marine_VHF_radio wikiPageWikiLink Harbor.
- Marine_VHF_radio wikiPageWikiLink Harbour.
- Marine_VHF_radio wikiPageWikiLink Hertz.
- Marine_VHF_radio wikiPageWikiLink ITU.
- Marine_VHF_radio wikiPageWikiLink International_Telecommunication_Union.
- Marine_VHF_radio wikiPageWikiLink Lifeboat_(shipboard).
- Marine_VHF_radio wikiPageWikiLink Line-of-sight_propagation.
- Marine_VHF_radio wikiPageWikiLink Lock_(water_transport).
- Marine_VHF_radio wikiPageWikiLink Marina.
- Marine_VHF_radio wikiPageWikiLink Maritime_Mobile_Service_Identity.
- Marine_VHF_radio wikiPageWikiLink Maritime_mobile_amateur_radio.
- Marine_VHF_radio wikiPageWikiLink Mayday.
- Marine_VHF_radio wikiPageWikiLink Mayday_(distress_signal).
- Marine_VHF_radio wikiPageWikiLink Megahertz.
- Marine_VHF_radio wikiPageWikiLink NATO_phonetic_alphabet.
- Marine_VHF_radio wikiPageWikiLink Nautical_mile.
- Marine_VHF_radio wikiPageWikiLink Pan-pan.
- Marine_VHF_radio wikiPageWikiLink Procedure_word.
- Marine_VHF_radio wikiPageWikiLink Radio_horizon.
- Marine_VHF_radio wikiPageWikiLink Radiotelephone.
- Marine_VHF_radio wikiPageWikiLink Rescue.
- Marine_VHF_radio wikiPageWikiLink Roman_languages.
- Marine_VHF_radio wikiPageWikiLink Romance_languages.
- Marine_VHF_radio wikiPageWikiLink Simplex_communication.
- Marine_VHF_radio wikiPageWikiLink Sécurité.
- Marine_VHF_radio wikiPageWikiLink Telephone.
- Marine_VHF_radio wikiPageWikiLink United_Kingdom.
- Marine_VHF_radio wikiPageWikiLink Very_high_frequency.
- Marine_VHF_radio wikiPageWikiLink Walkie-talkie.
- Marine_VHF_radio wikiPageWikiLink Weather_radio.
- Marine_VHF_radio wikiPageWikiLink File:Handheld_Maritime_VHF.jpg.
- Marine_VHF_radio wikiPageWikiLink File:Maritime_VHF_Sailor_RT144.JPG.
- Marine_VHF_radio wikiPageWikiLink File:Maritime_VHF_Sailor_type.jpg.
- Marine_VHF_radio wikiPageWikiLink File:SP3540.jpg.
- Marine_VHF_radio wikiPageWikiLinkText "Channel 16".
- Marine_VHF_radio wikiPageWikiLinkText "Channel 21B".
- Marine_VHF_radio wikiPageWikiLinkText "Handheld VHF transceiver".
- Marine_VHF_radio wikiPageWikiLinkText "Marine VHF radio".
- Marine_VHF_radio wikiPageWikiLinkText "Marine VHF".
- Marine_VHF_radio wikiPageWikiLinkText "Radiotelephony (VHF)".
- Marine_VHF_radio wikiPageWikiLinkText "VHF Ch.16".
- Marine_VHF_radio wikiPageWikiLinkText "VHF Marine Band".
- Marine_VHF_radio wikiPageWikiLinkText "VHF Marine Radio".
- Marine_VHF_radio wikiPageWikiLinkText "VHF Radios".
- Marine_VHF_radio wikiPageWikiLinkText "VHF marine radio".
- Marine_VHF_radio wikiPageWikiLinkText "VHF radio".
- Marine_VHF_radio wikiPageWikiLinkText "VHF radios".
- Marine_VHF_radio wikiPageWikiLinkText "VHF".
- Marine_VHF_radio wikiPageWikiLinkText "channel 16".
- Marine_VHF_radio wikiPageWikiLinkText "marine VHF band".
- Marine_VHF_radio wikiPageWikiLinkText "marine VHF operation".
- Marine_VHF_radio wikiPageWikiLinkText "marine VHF radio".
- Marine_VHF_radio wikiPageWikiLinkText "marine VHF".
- Marine_VHF_radio wikiPageWikiLinkText "marine VHF-FM radio".
- Marine_VHF_radio wikiPageWikiLinkText "marine communications".
- Marine_VHF_radio wikiPageWikiLinkText "marine radio frequencies".
- Marine_VHF_radio wikiPageWikiLinkText "marine radio".
- Marine_VHF_radio wikiPageWikiLinkText "maritime VHF".
- Marine_VHF_radio wikiPageWikiLinkText "maritime channels".
- Marine_VHF_radio wikiPageWikiLinkText "maritime radio".
- Marine_VHF_radio wikiPageWikiLinkText "maritime".
- Marine_VHF_radio wikiPageWikiLinkText "radios".
- Marine_VHF_radio wikiPageWikiLinkText "ship radios".