@prefix cpm: . @prefix dc: . @prefix dcat: . @prefix dce: . @prefix dct: . @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 semapv: . @prefix skos: . @prefix sssom: . @prefix void: . skos:member . skos:narrower . skos:altLabel "Sperry Marine SRD 500" , "Sperry Marine SRD 500"@en ; skos:broader , ; skos:definition "A dual-axis Doppler speedlLog operating at 307kHz. This instrument measures speeds in the -20 to 50 knot range with accuracy of +/- 0.1 (for speeds <2 knots) in bottom tracking mode and +/-0.1 (for speeds <10 knots) in water tracking mode."@en ; skos:inScheme ; skos:notation "SDN:L22::TOOL0815" ; skos:note "accepted"@en ; skos:prefLabel "Sperry Marine SRD 500 Doppler speed log"@en ; skos:related . skos:narrower . skos:related . skos:narrower . skos:related . skos:narrower .