Technical information

Functionsanddialogs
-50dB
-70dB
-30dB
(CD010217-003)
TheBackstepMin.Levelparameterallowsyouto
manuallymodifywhereonthebottompulsethe
depthshallbedetected.Thesettingdoesnothave
aneffectontheEK60'sabilitytodetectandtrack
thebottom.
aThepeakofthebottompulse
bDefaultbottombacksteplevel
cApproximatebottombacksteplevelforatsh
detection
dApproximatebottombacksteplevelforseagrassdetection
Thebottompulsebasicallyidentiesthebottomdepthjustpriortothepeakofthe
pulse(A).However,thismaynotbethetruebottom.Forexample,ifthebottom
pulseisgeneratedbyarockbottomunderathicklayerofmud,theactualdepthis
slightlyshallower.Forthisreason,theEK60isbydefaultsetuptogiveyouadepth
readingafewmillisecondsbeforethepeakofthepulse.Thisisdonebysettingthe
bottombackstepleveltoadefaultvalueof-50dB(B).
Theactualbottomwillneverappearatthepeakofthebottompulse(A),itwill
alwaysbeslightlybeforethepeak.BychangingtheBackstepMin.Levelparameter
youcanhavethebottomdetectedearlier.Thisfeaturecanforexamplebeusedwhen
youshforatsh,orwhenyouareharvestingseagrass.
→Bottomslopesonpage227
Relatedtopics
•Short-cutmenus;functionsanddialogsonpage138
•Bottomslopesonpage227
SingleT argetDetection
TheSingleT argetDetectiondialogisopenedfromtheshort-cutmenusintheSingle
TargetPositionandtheSingleTargetHistogramviews.
YoucanalsoopenthedialogfromtheEchoTraceSetupbuttonintheEK500Datagram
dialog.
Purpose
TheSingleTargetDetectiondialogisusedtosettheoperationalparametersfordetecting
singletargets.
164692/D
141