Si-text trawl plot 12, User Manual, Page: 13 / 118

15 User Manual
Operating Temperature Range
•
From 0°C to 55°C (from 32°F to 131°F)
Memory
•
Non volatile with battery back-up
Keyboard
•
Backlighted, silicon rubber
1.3 BASICS
The chartplotter is controlled by using 24 keys. There is also a Joystick to
move a cursor across the screen.
Fig. 1.3 - The chartplotter
As you press a key, a single audio beep confirms the key action; every time
the key pressed is not valid, three rapid beeps sound indicates that no response is
available. Note that it is possible to enable (On) or disable (Off) the keypad beep
following the procedure:
'MENU' + "GENERAL" + 'ENTER' + "Keypad Beep" + 'ENTER'