Koden ESR-S1BB, Operation Manual

Page: 33 / 73

2-13
RANGE
BEARING
SECTOR
TILT
MARKER
CURSOR
RANGE
BEARING
SECTOR
TILT
MARKER
CURSOR
RANGE
BEARING
SECTOR
TILT
MARKER
CURSOR
RANGE
BEARING
SECTOR
TILT
MARKER
CURSOR
RANGE
BEARING
SECTOR
TILT
MARKER
CURSOR
RANGE
TILT
BEARING
SECTOR
MARKER
CURSOR
＋
SONAR OPERATION
TARGET LOCK KEY
When pressing the Target Lock key in the Sonar Mode, the direction of sweep of the sonar
beam is reversed. (When MENU / TARGET LOCK / MODE 0 is selected.)
When pressing the Target Lock key in the Sonar Mode, the sonar beam tracks the echo
automatically. (When MENU / TARGET LOCK / MODE 1 or MODE 2 is selected.)
The red-letter “TARGET LOCK” is displayed at the position of both “BEARING” and “SECTOR”
on the screen right.

Please refer to page 3-13 for more details of the Target Lock operation.
THRESHOLD KEY
The weak echoes disappear by pressing this key accordingly.

Only strong wanted targets appear on the screen by pressing this key to erase unwanted
returns such as plankton or noise.

Each press of Threshold key clears the weakest color sample.
COLOR SCALE
Each press of this key 7 colors 6 colors 5 colors 4 colors 3 colors 2 colors
changes the color
sample as shown right.