Samyung NAVIS800FS Instruction Manual page 89

 Display for fish-finder only
You may choose a display mode by
freq./Low freq.) by
Fish-finder with Low Freq.
( ) set ON/OFF
It shows setting menu if press
fish-finder.
 Start Set : Change a water depth of fish-finder's recording display by pressing
 Range Set : Set a water-depth interval of fish-finder's recording display by
 Mag. Size : Zoom In & Out by
 Dep. Auto : Select a depth mode of transducer's TX/RX in auto/manual by using
(
( ).
) and also the display mode depends on frequency (High
Fish-finder with High
( ) button on plotter/fish-finder display or display only for
(
89
Freq.
).
( ).
( ).
( ).