266
406388/B
•Channel
AllsensorsareprovidedbyKongsbergMaritimeASwithpredenedcommunication
channels.Itmayberequiredtochangeoneormorecommunicationchannels,andthere
maybemanyreasonsforthis.
Selectachannelwithlownoiseandinterferencefromothersensorsorsystems.For
example,ahullmountedechosounderat38kHzwithhighpowerandshortpulselength,
cancreateinterferenceonchannels1Land1HorTrawlEyechannel1.Thesamehappens
whenusingaechosounderon50kHzsinceitcaninterferewiththehighest8Land8H
channelorthehighestTrawlEyechannel8.
SeeOverviewofsensorschannelsandfrequencies,page269
•Updaterate
AllsensorsareprovidedbyKongsbergMaritimeASwithadefaultupdateratesetting.In
somecasesyoumayndthatthisupdateratedoesnotsuityouroperationalneeds.This
parametershowshowoftenyoucanexpecttoreceiveinformationfromthesensor.A
fasterupdaterategivesyouinformationmoreoften,butwilldecreasethebatterylife.
WhenconguringPXMultiSensormk2
,PXUniversal orPXMultiCatch sensors,the
optionsare“Fast”,“Normal”and“Slow”.Theupdaterateismeasuredinseconds.
“Fast”isthefastestpossibleupdateratefortheselectedmeasurements.“Normal”is2
timesslowerand“Slow”is3timesslower.Theupdateratedependsonthetypeof
measurementyouhaveselectedandhowmanymeasurementsthesensoristransmitting.
WhenconguringaPXTrawlEye
,theupdateratevaluereferstothetimebetweeneach
updatefromtheTrawlEye.Theoptionsare0.5s,1s,2s,4sor8sbeing1sthedefault
value.Whentowingsloworonschoolsofsh,youcanselect2soraslowervalueto
increasebatterylife.Whentowingat3ktsorfasteroronsingletargetsh,1supdate
rateisrecommended.
•Outputpower
Outputpowerisrelatedtothesignalcomingfromthesensorgoingtothevessel.Together
withupdaterate,outputpowerhasthebiggestimpactinthebatteryconsumption.
Werecommendyoutondthelowestoutputpowerthatgivessatisfactorysignalto
increaseusagebetweencharging.
SimradTV80ReferenceManual