Raymarine A series - Page 281

Gain
Thegainsettingsalterthewaythesonarmodule
processesbackgroundnoise.Adjustingthegain
settingscanimprovethesonarimage,however
foroptimumperformanceinmostconditions,we
recommendthatyouusetheautosettings.
Thegaincontroldeterminesthestrengthabove
whichechoesaredisplayedon-screen.
20%ManualGainAutoGain80%ManualGain
Auto
InAutomodethesonarmoduleautomaticallyadjusts
thegainsettingtosuitcurrentconditions.
WhenconnectedtoaLegacysonarmoduleora
Traditionalinternalsonarmodule3AutoGainmodes
areavailable:
•Cruising(Low)
•Trolling(Med)
•Fishing(Fast)
Manual
Ifnecessaryyoucansetthegaincontrolsmanually,
betweenavalueof0%to100%.Thisvalueshould
besethighenoughtoseeshandbottomdetailbut
withouttoomuchbackgroundnoise.Generallya
highgainisusedindeepand/orclearwater;alow
gaininshallowand/ormurkywater.
Thenewvaluesremainsetevenwhenyouswitch
offthedisplay.
On-screengaincontrols
TouchonlyandHybridTouchmultifunctiondisplays
haveon-screengaincontrols.
Selectingtheon-screengaincontrolwilldisplaythe
gainsettings:
WhenconnectedtoaLegacysonarmoduleora
traditionalinternalsonarmoduletheautomaticgain
has3modes.
WhenconnectedtoexternalCHIRP ,external
TraditionalorDownVision
TM
sonarmodulesgain
modesarenotrequired.
Wheninmanualmodethesliderbarcontrolis
shown.
Note:SideVision
TM
channelsdonotuse
on-screenGaincontrolsTheGainsettingcanbe
foundintheSensitivitySettingsmenu.
Enablinganddisablingon-screengain
controls
Youcanenableanddisabletheon-screengain
controlsbyfollowingthestepsbelow.
Onatouchscreenmultifunctiondisplay,withthe
relevantapplicationdisplayed.
1.SelectMenu.
2.SelectPresentation.
3.SelectGainControls.
SelectingGainControlswillswitchbetween
showingandhidingtheon-screencontrols.
Note:Whentheon-screenGaincontrolsareset
toHiddenthentheGainsettingscanbeaccessed
directlyfromtheapplicationmenu:Menu>Gain.
Adjustinggainmanuallyusingon-screen
controls
1.Selecttheon-screenGaincontrollocatedonthe
lefthandsideoftheshnderapplication.
2.SelecttheAutoboxtoswitchbetweenAutoand
Manualgain.
3.WithAutodeselected,selectandholdtheSlider
andmoveLefttodecreasevalueorRightto
increasevalue.
Settingtheautogainmodeusingthe
on-screencontrols
1.Selecttheon-screenGaincontrollocatedonthe
lefthandsideoftheshnderapplication.
2.SelecttheAutoboxsothatatickisdisplayed
inthebox.
3.SelecttherequiredAutoGainMode.
Adjustingshndergainusingthemenu
Theshndergainsettingcanbeaccessedfromthe
shndermenu.
Fromtheshnderapplication:
1.SelectMenu.
2.SelectSensitivitySettings.
3.SelectGain.
TheGainadjustdialogisdisplayed
4.Adjustthegaincontroltotherequiredsetting,or
5.SelectAuto.
AtickisdisplayedintheAutoboxtosignify
automaticgainisenabled.
Settingautogainmodeusingthemenu
WhenusingaLegacysonarmoduleoraTraditional
internalsonarmodule3AutoGainmodesare
available.TheAutoGainmodecanbesetby
followingthestepsbelow.
FromtheFishnderapplicationmenu:
Fishnderapplication
281