Raymarine e7 - Page 198

FishnderA-Scopemode
TheA-Scopemodeenablesyoutoviewalive(ratherthanhistorical)
imageoftheseabedandshdirectlybelowyourvessel.
Thestandardshnderdisplayshowsahistoricalrecordofshnder
echoes.Ifrequired,youcandisplayaliveimageofthebottom
structureandtheshdirectlybelowthetransducerbyusingthe
A-Scopefeature.ThewidthofthebottomcoveredbytheA-Scope
isindicatedatthebottomofthewindow.A-Scopeprovidesamore
preciseandeasiertointerpretindicationofthetargetstrength.
TherearethreeA-Scopemodes:
Mode1Mode2Mode3
TheA-scopeimageis
centredinthewindow.
Theleft-handsideof
theMode1imageis
expandedtogiveamore
detailedview.
TheA-scopeimage
anglesoutwardas
signalwidthincreases
withdepth.
198e7/e7D—Userreference