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Power On 1
How Sonar Works 2
DualBeam PLUS™ Sonar (DualBeam PLUS™ models only [587ci HD, 597ci HD]) ............ 4
Down Imaging™ Sonar
(Down Imaging™ models only [587ci HD DI, 597ci HD DI]) ............................................ 5
Xtreme Depth Sonar
(Xtreme Depth Series™ models only [597ci HD XD])........................ 6
Dual Beam Ice Transducer
(with optional-purchase XI 9 20 Ice Transducer).................... 7
How GPS Works 8
What’s on the 500 Series™ Control Head 9
Key Functions 10
POWER/LIGHT Key .................................................................................................. 10
VIEW Key ................................................................................................................ 10
CHECK/INFO key...................................................................................................... 11
MENU Key .............................................................................................................. 11
4-WAY Cursor Control Key ...................................................................................... 12
MARK Key ................................................................................................................ 13
GOTO Key.................................................................................................................. 13
ZOOM (+/-) Key........................................................................................................ 13
EXIT Key .................................................................................................................. 14
SD Memory Card Slot 15
Add Maps to Your Fishfinder .................................................................................. 16
Export Navigation Data............................................................................................ 17
Update Software...................................................................................................... 18
What’s on the Sonar Display 20
Understanding the Sonar Display .......................................................................... 22
Real Time Sonar (RTS™) Window .......................................................................... 22
Sonar Colors and Bottom View .............................................................................. 23
SwitchFire™ ............................................................................................................ 25
Freeze Frame and Active Cursor.............................................................................. 25
Instant Image Update.............................................................................................. 25
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