About: Through-the-earth communications

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Radio signalling used in mines and caves

Property	Value
dbo:description	Radio signalling used in mines and caves (en)
dbo:wikiPageExternalLink	http://www.cavelink.com/cl3x_neu/index.php/en/ http://caves.org.uk/radio/radioloc_for_cave.html http://nicola.sssi.fr/spip.php%3Farticle29 http://www.espectech.com/mine-safety http://www.mstglobal.com/ http://www.radius-nvic.ru/index.php%3Foption=com_content&task=view&id=23&Itemid=12 http://www.vitalalert.com/vital-alert-products http://www.afcea.org/signal/articles/templates/Signal_Article_Template.asp%3Farticleid=1437&zoneid=222 http://albuquerque.bizjournals.com/albuquerque/stories/2009/07/27/daily19.html http://bcra.org.uk/creg/index.html http://through-the-earth.com https://web.archive.org/web/20100527204221/http:/www.msha.gov/regs/comments/06-722/AB44-COMM-75.pdf https://web.archive.org/web/20160305021345/http:/www.akvarius.lv/downloads/presentations/MRS_2_rus.pdf http://www.lockheedmartin.com/content/dam/lockheed/data/ms2/documents/MagneLink-brochure.pdf
dbo:wikiPageWikiLink	dbr:Tham_Luang_cave_rescue dbr:List_of_coal_mines_in_the_United_States dbr:Australia dbr:Chile dbr:Mongolia dbr:Radio dbr:Sweden dbr:Tanzania dbr:United_States dbr:Utah dbr:West_Virginia dbr:Single-sideband_modulation dbr:Canada dbr:Mining dbr:Radio_wave dbr:Electrical_conductor dbr:Antenna_(radio) dbr:Super_low_frequency dbr:Miner dbr:Repeater dbr:Moura,_Queensland dbr:Ultra_low_frequency dbr:Project_Sanguine dbr:Cave dbr:Text_messaging dbr:Speleology dbr:Extremely_low_frequency dbr:Leaky_feeder dbr:Sideband dbr:Very_low_frequency dbr:SOS dbr:Ground_dipole dbr:National_Institute_for_Occupational_Safety_and_Health dbr:Caving dbr:Caving_equipment dbr:Low_frequency dbr:Tunnel_transmitter dbr:Communication_with_submarines dbr:British_Cave_Research_Association dbc:Underground_mining dbc:Telecommunications_techniques dbc:Radio_communications dbr:People's_Republic_of_China dbr:Voice dbr:Mine_Safety_&_Health_Administration dbr:Speleophone
dbp:cs1Dates	y (en)
dbp:date	December 2021 (en)
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dct:subject	dbc:Underground_mining dbc:Telecommunications_techniques dbc:Radio_communications
gold:hypernym	dbr:Radio
rdfs:label	Through-the-earth communications (en) Through-the-earth mine communications (en) Подземная радиосвязь (ru)
owl:sameAs	dbr:Through-the-earth communications yago-res:Through-the-earth communications freebase:Through-the-earth communications wikidata:Through-the-earth communications dbpedia-ru:Through-the-earth communications dbpedia-global:Through-the-earth communications
prov:wasDerivedFrom	wikipedia-en:Through-the-earth_communications?oldid=1303338558&ns=0 wikipedia-en:Through-the-earth_mine_communications?oldid=1275696189&ns=0
foaf:isPrimaryTopicOf	wikipedia-en:Through-the-earth_communications wikipedia-en:Through-the-earth_mine_communications
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is dbo:wikiPageWikiLink of	dbr:Mine_Safety_and_Health_Administration dbr:Ultra_low_frequency dbr:Riesending_cave_rescue dbr:Very_low_frequency dbr:Personal_emergency_device dbr:Low-power_wide-area_network dbr:Cave_radio dbr:Fauchez_System dbr:Fauchez_system dbr:Heyphone dbr:PED_System dbr:PED_system dbr:Canary_Talk dbr:Canary_Talk_Through-The-Earth_Communications_System dbr:Mole_Phone dbr:Molefone dbr:Molephone dbr:Vital_Alert dbr:Nicola_System dbr:Nicola_system dbr:Through_the_earth_mine_communications dbr:System_Fauchez dbr:System_Nicola dbr:Tellurophone dbr:Speleophone dbr:Personal_Emergency_Device dbr:Transmission_Par_Sol
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is foaf:primaryTopic of	wikipedia-en:Through-the-earth_communications wikipedia-en:Through-the-earth_mine_communications