Simrad ES80 - Gain Function

312
406273/C
Details
StartRange
Thissettingcontrolstheupperstartdepthfortheechogram.Theverticalheightof
theechogramisthevaluedenedbytheRangesetting.
Selecteithersideofthebuttontochooseavalue.Selectthemiddleofthebuttonto
openit.
Applytoall
Thedepthvalueshownandselectedisbydefaultonlyappliedtothecurrently
selectedechogram.Ifyouwishtoapplythenewstartrangesettingtoallthe
currentechogramsofthesametype,selectApplytoall.
Relatedtasks
ChoosingRangeandStartRangevaluesinasurfacerelatedechogram,page94
ChoosingRangeandStartRangevaluesinabottomrelatedechogram,page95
Conceptualdescriptions
Observationrangeversusoperationalfrequency,page457
Aboutbottomechoes,page458
Gainfunction
ThepurposeoftheGainfunctionistoadjusttheecholevelintheES80presentations.
AdjustingtheGainyoucancontrolhowmuchamplicationisappliedtothereceived
echoes.Bydefault,thegainsettingisonlyappliedtothecurrentlyselectedechogram
(identiedwithathickborder).
Howtoopen
ThisfunctionisopenedfromtheMainmenu.
Description
Youcancomparethisgainsettingwiththevolumecontrolonyourcarradio.When
thegainisincreased,theechoeswillappearstronger.Weakechoeswillbeeasierto
see.However,sinceyoualsoincreasetheacousticnoiseinthereception,theES80
presentationswillalsoshowthisnoise.Toomuchgainmaytherefore"distort"the
presentation.
Bydefault,thegainsettingisonlyappliedtothecurrentlyselectedechogram(identied
withathickborder).Severalechogramtypesareavailable.
SimradES80ReferenceManual