VX-450 S
ERIES
O
PERATING
M
ANUAL
18
Description of Operating Functions
M
ONITOR
Press (or press and hold) the assigned Programmable
key to cancel any signaling features; the
BUSY/TX
indicator will glow green.
M
ONITOR
-M
OMENTARILY
-
Cancel any signaling features while pressing the as-
signed programmable key.
L
AMP
Press (or press and hold) the assigned Programmable
key to illuminate the display for five seconds.
L
OW
P
OWER
Press (or press and hold) the assigned Programmable
key to set the radio’s transmitter to the “Low Power”
mode, thus extending battery life. Press (or press and
hold) the key again to return to “Normal” transmit
power when in difficult terrain.
When the radio’s transmitter is set to “Low Power”
mode, the “
L
” icon will be indicated on the display.
E
NCRYPTION
Press (or press and hold) the assigned Programmable
key to toggle the Encryption feature “On” and “Off.”
S
ET
Press (or press and hold) the assigned Programmable
key to activate the “User Set” (Menu) Mode. See page
30 for details
SQL OFF
Press (or press and hold) the assigned programmable
key to open the SQL to hear background noise
(unmute the audio).
SQL OFF -M
OMENTARILY
-
Opens the SQL to hear background noise (unmute
the audio) while pressing the assigned programmable
key.
A
DVANCED
O
PERATION
