Garmin VHF 720 - Manual (Page 30)

24
GETTING
STARTED
Backlighting
& Key lock
Features
The FCC prohibits the following communications:
o False distress or emergency messages
oMessages to “Any Boat” except in emergencies
and radio tests
oMessages to or from a vessel on land and
transmission while on land
oObscene, indecent, or profane language
(potential fine of $10,000)
7. Remember to return to monitoring of Channel 16
by pressing the 16/9 key once when not using
another channel.
Backlighting the LCD Display
The backlighting feature is used to improve
readability of the LCD display in dim light.
1. Press and release the PWR key after the unit has
powered on. The display will be illuminated for 5
seconds after the last key press before cycling off.
NOTE: Press this key anytime you require visual
reference in dim light.
Using the Key Lock Feature
If you desire to maintain a selected function
on your VHF 720, such as TRI-WATCH, SCAN,
or Weather Alert, you can lock the keys using
the Lock feature to prevent inadvertent canceling
or changing of unit settings. However, the Press-
To-Talk, Squelch, and Power keys still function.
1. Press the H/L-LOCK (Hi/Low transmission
power) key for more than one second after you
have set the unit to the function desired. When
the unit keypad is locked, the “LOCK” message
will be displayed on the LCD screen. (Figure 12)
2. To cancel the lock feature, press the H/L-LOCK
key again for more than one second or turn Off
the unit using the POWER key.
FIGURE 12
Key Lock Display
Press and
Hold for
More
Than
1 Second