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- High_Frequency_Global_Communications_System abstract "The High Frequency Global Communications System (HFGCS) is a network of single sideband shortwave transmitters of the United States Air Force which is used to communicate with aircraft in flight, ground stations and some United States Navy surface assets. All worldwide receiving and transmitting sites in the HF-GCS system are remotely controlled from Andrews AFB and Grand Forks AFB Grand Forks AFB. Before 1 October 2002 it was known as the Global High Frequency System (GHFS).HFGCS stations tend to operate in the aviation bands clustered around 5, 8 and 11/12 MHz, although other frequencies are in use. The primary HFGCS voice frequencies are 4724.0 kHz, 6739.0 kHz, 8992.0 kHz, 11175.0 kHz, 13200.0 kHz and 15016.0 kHz. In addition to the HFGCS, U.S. aircraft frequently use Military Affiliate Radio System (MARS) HF stations (13927.0 kHz) and Canadian Forces HF stations (11232.0 kHz) to relay messages.One common use for the HFGCS is to place telephone calls from the aircraft in flight by means of the Defense Switched Network (DSN) to an Air Force base to obtain local weather conditions, to arrange for refueling, and to inform the base of the number of passengers and crew. The HFGCS also carries Emergency Action Messages.In addition to EAM's the HFGCS also carries a few different types of messages. A higher priority code for orders is a Skyking Message, which is a time sensitive message for orders that need immediate attention. Force Direction Messages (FDM's) are also sent through the HFGCS, although it is impossible to tell whether the message is an FDM or just another EAM being read.Although transmissions are often single sideband, the use of the ALE transmission mode is more and more common. Naval Special WarfareHFGCS complements the use of satellite communications between aircraft and ground stations.Stations of the HF-GCS Network Andersen Global, Andersen Air Force Base, Guam Island Andrews Global, Andrews Air Force Base, Maryland USA Ascension Global, RAF Ascension Island, Atlantic Ocean Croughton Global, RAF Croughton, United Kingdom Diego Garcia Global, Diego Garcia Naval Station, Indian Ocean Elmendorf Global, Elmendorf Air Force Base, Alaska Hickam Global, Hickam Air Force Base, Hawaii Lajes Global, Lajes Field, Azores Lincoln Receiver Site (aka West Coast Global), Beale Air Force Base, California Offutt Global, Offutt AFB, Nebraska Puerto Rico Global, Salinas, Puerto Rico Sigonella Global, Naval Air Station Sigonella, Sicily, Italy Yokota Global, Yokota Air Base, JapanClosed Stations Thule Air Base, Greenland Keflavík Global, Keflavík NAS, Iceland↑ 1.0 1.1 1.2".
- High_Frequency_Global_Communications_System wikiPageID "2988156".
- High_Frequency_Global_Communications_System wikiPageLength "3330".
- High_Frequency_Global_Communications_System wikiPageOutDegree "31".
- High_Frequency_Global_Communications_System wikiPageRevisionID "675842683".
- High_Frequency_Global_Communications_System wikiPageWikiLink Andersen_Air_Force_Base.
- High_Frequency_Global_Communications_System wikiPageWikiLink Andrews_AFB.
- High_Frequency_Global_Communications_System wikiPageWikiLink Andrews_Air_Force_Base.
- High_Frequency_Global_Communications_System wikiPageWikiLink Andrews_Field.
- High_Frequency_Global_Communications_System wikiPageWikiLink Automatic_link_establishment.
- High_Frequency_Global_Communications_System wikiPageWikiLink Beale_Air_Force_Base.
- High_Frequency_Global_Communications_System wikiPageWikiLink Canadian_Armed_Forces.
- High_Frequency_Global_Communications_System wikiPageWikiLink Canadian_Forces.
- High_Frequency_Global_Communications_System wikiPageWikiLink Category:Military_equipment_of_the_United_States.
- High_Frequency_Global_Communications_System wikiPageWikiLink Category:United_States_nuclear_command_and_control.
- High_Frequency_Global_Communications_System wikiPageWikiLink Defense_Switched_Network.
- High_Frequency_Global_Communications_System wikiPageWikiLink Diego_Garcia.
- High_Frequency_Global_Communications_System wikiPageWikiLink Elmendorf_Air_Force_Base.
- High_Frequency_Global_Communications_System wikiPageWikiLink Emergency_Action_Message.
- High_Frequency_Global_Communications_System wikiPageWikiLink Emergency_Action_Messages.
- High_Frequency_Global_Communications_System wikiPageWikiLink Grand_Forks_Air_Force_Base.
- High_Frequency_Global_Communications_System wikiPageWikiLink Greenland.
- High_Frequency_Global_Communications_System wikiPageWikiLink Hickam_Air_Force_Base.
- High_Frequency_Global_Communications_System wikiPageWikiLink Hickam_Field.
- High_Frequency_Global_Communications_System wikiPageWikiLink Keflavík.
- High_Frequency_Global_Communications_System wikiPageWikiLink Lajes_Field.
- High_Frequency_Global_Communications_System wikiPageWikiLink Military_Affiliate_Radio_System.
- High_Frequency_Global_Communications_System wikiPageWikiLink Military_Auxiliary_Radio_System.
- High_Frequency_Global_Communications_System wikiPageWikiLink Naval_Air_Station_Sigonella.
- High_Frequency_Global_Communications_System wikiPageWikiLink Nebraska.
- High_Frequency_Global_Communications_System wikiPageWikiLink Offutt_AFB.
- High_Frequency_Global_Communications_System wikiPageWikiLink Offutt_Air_Force_Base.
- High_Frequency_Global_Communications_System wikiPageWikiLink RAF_Ascension_Island.
- High_Frequency_Global_Communications_System wikiPageWikiLink RAF_Croughton.
- High_Frequency_Global_Communications_System wikiPageWikiLink Salinas,_Puerto_Rico.
- High_Frequency_Global_Communications_System wikiPageWikiLink Shortwave.
- High_Frequency_Global_Communications_System wikiPageWikiLink Shortwave_radio.
- High_Frequency_Global_Communications_System wikiPageWikiLink Single-sideband_modulation.
- High_Frequency_Global_Communications_System wikiPageWikiLink Single_sideband.
- High_Frequency_Global_Communications_System wikiPageWikiLink Thule_Air_Base.
- High_Frequency_Global_Communications_System wikiPageWikiLink U.S._Naval_Special_Warfare_Command.
- High_Frequency_Global_Communications_System wikiPageWikiLink United_States_Air_Force.
- High_Frequency_Global_Communications_System wikiPageWikiLink United_States_Naval_Special_Warfare_Command.
- High_Frequency_Global_Communications_System wikiPageWikiLink United_States_Navy.
- High_Frequency_Global_Communications_System wikiPageWikiLink Yokota_Air_Base.
- High_Frequency_Global_Communications_System wikiPageWikiLinkText "High Frequency Global Communications System".
- High_Frequency_Global_Communications_System hasPhotoCollection High_Frequency_Global_Communications_System.
- High_Frequency_Global_Communications_System wikiPageUsesTemplate Template:Clarify.
- High_Frequency_Global_Communications_System wikiPageUsesTemplate Template:Commons_category.
- High_Frequency_Global_Communications_System subject Category:Military_equipment_of_the_United_States.
- High_Frequency_Global_Communications_System subject Category:United_States_nuclear_command_and_control.
- High_Frequency_Global_Communications_System hypernym Network.
- High_Frequency_Global_Communications_System type Article.
- High_Frequency_Global_Communications_System type Broadcaster.
- High_Frequency_Global_Communications_System type Article.
- High_Frequency_Global_Communications_System comment "The High Frequency Global Communications System (HFGCS) is a network of single sideband shortwave transmitters of the United States Air Force which is used to communicate with aircraft in flight, ground stations and some United States Navy surface assets. All worldwide receiving and transmitting sites in the HF-GCS system are remotely controlled from Andrews AFB and Grand Forks AFB Grand Forks AFB.".
- High_Frequency_Global_Communications_System label "High Frequency Global Communications System".
- High_Frequency_Global_Communications_System sameAs m.08h_mq.
- High_Frequency_Global_Communications_System sameAs Глобальная_коротковолновая_система_связи_ВВС_США.
- High_Frequency_Global_Communications_System sameAs Q4139926.
- High_Frequency_Global_Communications_System sameAs Q4139926.
- High_Frequency_Global_Communications_System wasDerivedFrom High_Frequency_Global_Communications_System?oldid=675842683.
- High_Frequency_Global_Communications_System isPrimaryTopicOf High_Frequency_Global_Communications_System.