@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:altLabel "Reson SeaBat T20-R" , "Reson SeaBat T20-R"@en ; skos:broader , ; skos:definition "A high resolution multibeam echosounder for use on small vessels. Operates at frequencies between 190 and 420 kHz, providing coverage between 0.5 and 575 metre sea floor depths. Features a portable sonar processor. Has along and across-track beamwidths of 1 degree at 400 kHz, or 2 degrees at 200 kHz. Swath coverage of up to 165 degrees. Optional integrated Inertial Navigation System for accurate sensor time tagging and motion stabilisation."@en ; skos:inScheme ; skos:notation "SDN:L22::TOOL1685" ; skos:note "accepted"@en ; skos:prefLabel "Teledyne Reson SeaBat T20 R multibeam echosounder"@en ; skos:related , . skos:narrower . skos:member . skos:related . skos:narrower . skos:related . skos:narrower . skos:related . skos:narrower . skos:related .