Specifications

14
CHART SPEED
The rate echoes scroll across the screen is
called the chart speed. It’s adjustable by press-
ing the menu key until the chart speed menu
appears as shown at the top of the next page.
Chart speed is set to maximum when the
SupraPro I.D. is first turned on. To decrease it,
press the down arrow key. Press the up arrow
key to increase the speed again. The percent-
age of chart speed in use appears beneath the
arrows in the Chart Speed menu box. Echoes
scrolling onto the screen will also show the
effects of the change. If you reach the maxi-
mum or minimum level, a warning tone sounds.
ALARMS
FISH ALARM
The Fish Alarm sounds a tone when a fish
symbol appears on the screen. To use the fish
alarm, press the menu key until the “FISH
ALARM” menu appears on the screen. Now
press the up arrow key to turn the alarm on.
Repeat the above steps to turn the fish alarm
off.
SHALLOW ALARM
The shallow alarm is triggered only by the
bottom signal. No other echoes will activate
this alarm. The shallow alarm sounds an alarm
tone when the bottom goes shallower than the
alarm’s setting.
To set the shallow alarm, press the menu key
repeatedly until the “SHAL ALARM” menu
appears as shown below left. Press the down
arrow key to increase the depth, the up arrow
key decreases it. The number in the shallow
alarm’s menu box shows the current shallow