@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 "The Furuno DS-50 is a 3-beam Doppler speed log providing display of speed over a wide range from -10.0 to 40kt. Speeds are detected relative to ground or water both fore/aft and athwartship. This model operates at 440kHz, and has speed accuracy of 0.1kt. The DS 50T is supplied with an additional transceiver unit."@en ; sdo:inDefinedTermSet ; sdo:name "Furuno DS 50 and DS 50T Doppler speed log"@en ; sdo:termCode "SDN:L22::TOOL0793" .