Garmin VHF 720 User Manual
Page 12
6
GETTING
STARTED
Keys &
Function
Displays
Squelch Key - This key breaks the squelch
(unmutes the audio) when pressed and held. It is
also used to set the squelch threshold (the level
at which only strong signals can be received).
The squelch threshold is set by pressing and
holding the squelch key while using the UP/
DOWN keys to adjust the squelch level from 0
to 9. At level 0 (L0), all signals can be heard,
while at level 9 (L9), only the strongest signals
can be heard. Adjusting the squelch level
eliminates weak, unwanted signals, as explained
on page 17.
H/L (High/Low) Power Key - This key toggles
the transmitter power level from
High (3 watts)
to
Low (1 watt) when pressed and released. It
also locks the keypad when pressed and held for
more than one second.. The
Power key, PTT
key, backlighting key and the
Squelch key still
function in the Lock mode. Locking the keypad
prevents inadvertent changing of channel
settings and feature modes.
Squelch Key
H/L Power Key