Simrad ES80 - Page 412

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Description
TheNoisepageprovidesinformationaboutthecurrentestimatednoise,andthe
equivalentambientnoise.YourES80mustbesettoPassivemode.
Tip
IfyouwishtoswitchtoPassivemode,usetheNormalOperationdialogbox.TheNormal
OperationdialogboxislocatedontheOperationmenu.
LFMtransmissions
WhenyouworkwithLFMtransmission,
thenoiseispresentedinaplot.Theplot
showsthenoiselevelasafunctionof
thetransmissionfrequency.Thenoise
estimated,indBrelativeto1W,isshown
inabox.
Tip
SelectFixedAxistomakethecurves
easiertoread.
Ifyouwishtoswitchpulsetypebetween
CWandLFM,usetheNormalOperation
dialogbox.BeforeselectingLFM
transmissions,makesurethatyour
ES80isprovidedwithacompatible
transducer!
(Thescreencapturehasbeenmadewhileusingadummyload.)
CWtransmissions
WhenyouworkwithCWtransmissions,the
noiseispresentedintextboxes.
(Thescreencapturehasbeenmadewhileusing
adummyload.)
Aboutnoise
Thenoisethatcontributestothesignaltonoise
ratiomaybedividedintothefollowingtypesofnoise:
•Selfnoise
•Ambientnoise
•Electricalnoise
•Reverberation
SimradES80ReferenceManual