Installation manual
Operationalprocedures
Powerandpulsedurationprocedures
Theseproceduresexplainhowtocontroltheoutputpowerandtransmissionpulse
duration.
Topics
•Choosingpassivemodeofoperationonpage71
•Changingtheoutputpoweronpage71
•Adjustingthepulseduration(length)onpage72
Choosingpassivemodeofoperation
InordertocheckhowmuchnoisetheES70isreceiving,setittopassivemode.This
meansthattheES70isnottransmittingsoundpulsesintothewater,itisonly“listening”.
Procedure
1ClicktheOperationicon.
ThisiconislocatedundertheMainmenu.ItisusedtoopentheOperaiton
menu.
→Operationmenuonpage109
2ClickNormalOperationtoopentheNormalOperationdialog.
ThepurposeoftheNormalOperationdialogistoofferyouanoverviewofthe
currenttransceiverparameters,andtoprovideyouwiththeabilitytochangethem.
3Fortherelevanttransducerchannel,setModetoPassive.
4ClickOKtosavethecurrentsettingsandclosethedialog.
Changingtheoutputpower
Fromtimetotimeitmaybeusefultoreducetheoutputpower.Areducedpower
outputmayprovebenecialifyouarelookingforsingleshesorschoolsnearthe
surface,ifyouworkinveryshallowwaters,ifyouarebotheredwithfalseechoesdueto
reverberation,orifyousimplyfeelthattheechoesaretoostrong.
Note
Ifyouincreasetheoutputpower,makesurethatyoudonotchoosemorepowerthanyour
transducercanhandle.Withacorrectsetupwiththetransducerregisteredintheecho
soundersoftwareyouaresafeguardedagainstthis.However,ifyouuseathirdparty
transducerthatisnotknownbytheechosoundersoftware,youmayinictpermanent
damageifyouincreasetheoutputtobeyondthetransducer'scapabilities.
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