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About: Modulated ultrasound     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:MilitaryVehicle103764276, within Data Space : dbpedia.org associated with source document(s)

Type: yago:Object100002684yago:PhysicalEntity100001930yago:Ship104194289yago:Submarine104347754yago:Submersible104348184yago:Vehicle104524313yago:Vessel104530566yago:Warship104552696yago:Whole100003553yago:WikicatSubmarinesyago:Artifact100021939yago:Conveyance103100490yago:Craft103125870yago:Instrumentality103575240yago:MilitaryVehicle103764276 New Facet based on Instances of this Class

Ultrasound can be modulated to carry an audio signal (like radio signals are modulated). This is often used to carry messages underwater, in underwater diving communicators, and short-range (under five miles) communication with submarines; the received ultrasound signal is decoded into audible sound by a modulated-ultrasound receiver. A modulated ultrasound receiver is a device that receives a modulated ultrasound signal and decodes it for use as sound, navigational-position information, etc. Its function is somewhat like that of a radio receiver.