Raymarine A series - Page 284

3.WhenconnectedtoexternalCHIRPsonar
modules(excludingDownVision
TM
)andexternal
traditionalsonarmodules(excludinglegacy)you
canselectanautoTVGmode,
NoiseFilter
TheNoiseFilterisavailableonDownVision
TM
sonar
modules.TheNoiseFilterreducestheamountof
clutterdisplayedon-screenbyvaryingthegain
throughoutthecolumnofwater.
TheNoiseFiltercanbesettoautomaticoradjusted
manually:
•Automatic—InAutomodetheNoiseFilterisset
to20%.
•Manual—YoucanadjusttheNoiseFilter
manually,betweenavalueof0%to100%.
–Alowvaluedecreasesthedepthatwhichthe
lterisapplied.
–Ahighvalueincreasesthedepthatwhichthe
lterisapplied.
Thenewvaluesremainsetevenwhenyouswitch
offthedisplay.
AdjustingtheNoiseFilter
FollowthestepsbelowtoadjusttheNoiseFilter.
FromtheFishnderapplication:
1.SelectMenu.
2.SelectSensitivitySettings.
3.SelectNoiseFilter.
TheNoiseltersliderbarcontrolisdisplayed.
4.AdjusttheNoiseFiltertotherequiredvalue,or
5.SelecttheAutocheckboxtoswitchtoAuto
mode.
Note:TheNoiseltercanalsobeadjustedby
selectingtheon-screenN.Filtercontrol.
Colorthreshold
Colorthresholddeterminesthesignalstrength
belowwhichtargetsarenotshown.Traditionaland
CHIRPsonarusedifferentcolorstodeterminesignal
strengthswhilstDownVision
TM
usesmonochrome
shading.
TheColorThresholdsettingisaglobalsetting.When
thecolorthresholdvalueischangedallFishnder
applicationpanesonallnetworkedmultifunction
displayswillsharethesamecolorthresholdvalue.
Color
threshold
Traditional/CHIRP
channels
DownVision
TM
channel
100%(de-
fault)
50%
Alowsettingwouldresultinonlythestrongestcolors
orlightestshadesbeingdisplayed.
Adjustingthecolorthreshold
Thecolorthreshold’sdefaultvalueis100%,youcan
adjustthissettingsothatlesscolors/shadesare
displayed.
FromtheFishnderapplicationmenu:
1.SelectSensitivitySettings.
2.SelectColorThreshold.
3.Adjustthecolorthresholdtotherequiredvalue.
4.SelectOktoconrmsettingandclosethe
numericadjustcontrol.
Powermode
Powermodecontrolsthepowerlevelofthe
transducer.Powermodecanbesettoautomaticor
adjustedmanuallybetween0%and100%.Power
modeisonlyavailableonCHIRP ,Traditionaland
Legacysonarmodules.
•Auto—Thisisthedefaultsetting.Whenauto
isselectedthesonarmoduleautomatically
determinestheoptimumsettingbasedonthe
currentdepth,speed,and(bottom)signalstrength.
•Manual—Youcanadjustthepowerlevelbetween
in1%increments.Lowerpowerlevelsare
normallyusedindepthrangeslessthan2.4m(8
ft.)andhigherpowerlevelsaretypicallyselected
fordepthsgreaterthan3.7m(12ft.).
Adjustingthetransducerpowerlevel
FromtheFishnderapplicationmenu:
1.SelectSensitivitysettings.
2.SelectPowerMode.
Thepowermodesliderbarcontrolisdisplayed.
3.Adjustthesliderbartotherequiredsetting,or
4.SelectAutotosetautomaticpowermode.
284aSeries/cSeries/eSeries