Furuno CSH-53 - Manual (Page 60)

7-6
Description of target lock items
TrackingMethod
Sets target lock function: target lock mark, fish or automatic.
Track Echo Color
Sets minimum echo signal level to track. A fish school whose
signal level is above the level set here is tracked.
Fish Speed Limit
Sets fish speed at which target lock is cancelled.
Fish Track Window
Set distance at which to track fish schoolís track when it exits
the tracking window.
Fish Speed Update
Selects update interval of fish speed readout; 5,10, 20 or 30 sec-
onds.
Target Lock Window
Sets size of target lock window. The window itself is not show
on the display.
NORMAL: 32 x 32
LARGE: 64 x 64
LARGEST: 128 x 128