Raymarine LIGHTHOUSE 4 - Downvision Overview

Sonariseffectiveatarangeofspeeds.IndeeperwaterstheCHIRP
bandwidthisautomaticallyoptimizedtoimprovebottomlockandthe
detectionofmovingobjects(e
.g.fish)inthewiderwatercolumn.
CHIRPsonarscreenexample
Down
Vision
™
overview
DownVision™producesawide-angleside-to-sidebeamandathinfore-to-aft
beam.ThecoverageoftheDownVision™beamisawatercolumndirectly
beneathandtothesidesofthevessel.
DownVision™beam
DownVision™iseffectiveatlowervesselspeeds.Indeeperwatersthe
CHIRPbandwidthisautomaticallyoptimizedtoimprovebottomlockandthe
detectionofmovingobjects(e.g.fish)inthewiderwatercolumn.
Thewide,thinbeamproducescleartargetreturns.TheuseofCHIRP
processingandahigheroperatingfrequencyprovideamoredetailedimage,
makingiteasiertoidentifybottomstructuresaroundwhichfishmayreside.
DownVision™screenexample
Fishfinderapp
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