Power On
1
How Sonar Works
2
Single Beam Sonar
(550, 560)
.................................................................................... 4
DualBeam Sonar
(570)
................................................................................................ 5
DualBeam PLUS™ Sonar
(561)
....................................................................................5
Down Imaging™ Sonar
(570 DI)
.................................................................................. 6
What’s on the Sonar Display
7
Understanding the Sonar Display ............................................................................ 9
Real Time Sonar (RTS™) Window ............................................................................ 9
SwitchFire™ ............................................................................................................ 10
Freeze Frame and Active Cursor.............................................................................. 10
Instant Image Update .............................................................................................. 10
Bottom Presentation ................................................................................................ 11
What’s on the Down Imaging™ Display
(Down Imaging
™
models only [570 DI])
13
Understanding the Down Imaging™ Display ........................................................ 15
Interpreting the Display .......................................................................................... 15
Down Imaging
™
Sensitivity.................................................................................... 16
Freeze Frame and Active Cursor.............................................................................. 16
Views
17
Sonar View .............................................................................................................. 19
Sonar Zoom View .................................................................................................... 20
Split Sonar View
(DualBeam PLUS™ and Down Imaging™ models only [561, 570 DI])
...... 21
Big Digits View ........................................................................................................ 22
Down Imaging™ View
(Down Imaging™ models only [570 DI])
.................................... 23
Down Imaging™/Sonar Combo View
(Down Imaging™ models only [570 DI])
............ 24
What's on the 500 Series™ Control Head
25
Key Functions
26
POWER/LIGHT Key .................................................................................................. 26
VIEW Key.................................................................................................................. 27
MENU Key ................................................................................................................ 27
Table of Contents
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