Simrad ES80 - Adjusting the Transceiver Parameters; Selecting Passive Transceiver Mode

406273/C
159
Adjustingthetransceiverparameters
Topics
SelectingPassivetransceivermode,page159
Adjustingtheoutputpower,page160
Adjustingthepulseduration,page160
Deningthefrequencysweep(chirp)withineachtransmission,page161
DeningthepulsetypefortheES80transmissions,page162
SelectingPassivetransceivermode
InPassivemode,theES80willreceiveandcomputethesignalsdetectedbythe
transducer(s).Thismodeisthususefulfortestpurposes,andwhenyouwishtomeasure
theambientbackgroundnoiseinthesea.ItcanalsobeusefultoruntheES80inPassive
modetodiscriminatebetweentargetechoes(presentonlyinActivemode)andnoise
(presentinbothActiveandPassivemodes).
Context
Ifyouwishtoinvestigatetheambientnoise,choosePassivemodeintheNormal
Operationdialogbox.Anynoiseordisturbanceinthewater-withinthetransducer's
frequencyrange-willthenbedetectedandshown.Thisfeaturewillforexamplebe
abletopickupdisturbancesfromotherhydroacousticsystemsonyourownvessel,or
onothervesselsinthevicinity.
ThecurrentsettingofthisparameterisalsoshownintheExtrasmenu.
Procedure
1OpentheOperationmenu.
2SelectNormalOperation.
ObservethattheNormalOperationdialogboxopens.
3Fortherelevanttransceiverchannel,setModetoPassive.
Note
IfyousetModetoPassive,yourES80willnolongerprovideanyinformationin
theechogram(s).
4SelectOKtosavetheselectedsettingandclosethedialogbox.
Operatingprocedures