@prefix cpm: . @prefix dc: . @prefix dcat: . @prefix dce: . @prefix dct: . @prefix dcterms: . @prefix grg: . @prefix iop: . @prefix ns0: . @prefix ns1: . @prefix owl: . @prefix pav: . @prefix prov: . @prefix puv: . @prefix qudt: . @prefix rdf: . @prefix rdfs: . @prefix reg: . @prefix sdo: . @prefix semapv: . @prefix skos: . @prefix sssom: . @prefix void: . @prefix xsd: . rdf:type sdo:DefinedTerm ; sdo:description "{\"node\": {\n \"mode\": \"hyperbolic or circular\",\n \"notes\": \"Navigation and positioning system for the North Sea petroleum industry.\",\n \"range\": \"400km hyperbolic; 75-100km circular\",\n \"accuracy\": \"better than 2m below horizon (10m above horizon)\",\n \"operational\": \"1980s to 1995\",\n \"frequency\": \"420-450MHz\"\n}}"@en ; sdo:inDefinedTermSet ; sdo:name "Système leger de measure de distance receivers"@en ; sdo:termCode "SDN:L05::POS12" .