VX-450 S
erieS
O
perating
M
anual
22
a
dVanced
o
peratIon
Description of Operating Functions
e
ncryptIon
Press (or press and hold) the assigned Programmable
key to toggle the Encryption feature “On” and “Off.”
In the
VX-454/-459
, when the Voice Scrambler fea-
ture is activated, the “ ” icon will be indicated on
the display.
s
et
(
Vx-454 & Vx-459 o
nly
)
Press (or press and hold) the assigned Programmable
key to activate the “User Set” (Menu) Mode. See
“User Set Mode” chapter 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.
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
(
Vx-454 & Vx-459 o
nly
)
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.
In the
VX-454/-459
, when the radio’s transmitter is
set to “Low Power” mode, the “
L
” icon will be indi-
cated on the display.