Simrad EK15 - Beam Direction Function

SimradEK15
cFish(40logTVG)
Thisgainsettingprovideslargeramplicationclosetothebottom.Ithasbeen
designedtoprovidethebestechoesfromsinglesh.
dTargets(40logTVG)
Basically,thissettingusesthesameTVGamplicationasFish,butadditional
lteringandcompensationisimplemented.Onlyechoesdetectedand
interpretedassingleshareshown.Theechoesarecompensatedfortheir
physicalpositioninthebeam(beamcompensation).Thismeansthatshin
theouterregionofthebeamareadjustedtocorrectsizeeventhoughtheir
echoesareweaker.
NotethatthisTargets(40logTVG)settingisonlyfunctionalwithsplitbeam
transducers.
eTargetMix(40logTVG)
Basically,thissettingusesthesameTVGamplicationasFish,butadditional
beamcompensationisimplemented.Echoesdetectedandinterpretedassingle
shareadjustedtotheircorrectsizeaccordingtotheirphysicalpositionin
thebeam.
NotethatthisTargetMix(40logTVG)settingisonlyfunctionalwithsplitbeam
transducers.
fUser(VariableTVG)
ThissettingallowsyoutodeneyourownTVGsetting.
2Applytoall
Clickthisboxifyouwishtoimplementyourchangestoalltheechogramspresently
inuseontheEK15.
Relatedtopics
•SelectingTVGgainintheEchogramdialogboxonpage67
Relatedtopics
•Activemenu;functionsanddialogsonpage205
•Echogram;Echogramtabonpage210
•TVGgainonpage275
BeamDirectionfunction
TheBeamDirectionfunctionisactivatedbyclickingtheBeamDirectionbuttononthe
Activemenu.
Purpose
ThepurposeoftheBeamDirectionfunctionistoturntheechogrampresentationup-side
down.ThisistypicallyusediftheEK15transducersarelocatedatthebottomofa
shcagelookingupwards.
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