VX-450 S
ERIES
O
PERATING
M
ANUAL
21
E
MERGENCY
The
VX-450
series include an “Emergency” feature
which may be useful for alerting another party moni-
toring on the same frequency as your transceiver’s
channel.
Press the assigned Programmable key to initiate an
emergency call. For further details contact your Ver-
tex Standard dealer.
L
ONE
W
ORKER
Press (or press and hold) the assigned Programmable
key to toggle the Lone Worker feature “On” and
“Off”.
The Lone Worker feature is designed to emit an alarm
for 30 seconds when the Lone Worker Timer (pro-
grammed by your Vertex Standard dealer) has ex-
pired. If the user does not reset the timer by pressing
the
PTT
switch, the radio switches to the Emergency
mode.
G
ROUP
U
P
/D
OWN
(
VX-454
AND
VX-459 O
NLY
)
Press (or press and hold) the assigned Programmable
key to select a different Group of channels. Once the
desired Group is reached, rotate the
CH
Selector knob
to select the desired channel within the selected
Group.
C
HANNEL
U
P
/D
OWN
(
VX-454
AND
VX-459 O
NLY
)
Press (or press and hold) the assigned Programmable
key to select a different channel within the current
Group.
S
PEED
CH U
P
/D
OWN
(
VX-454
AND
VX-459 O
NLY
)
Press and hold the assigned programmable key causes
the radio to begin stepping (repeatedly) upward or
downward through the channels.
PRI-1/PRI-2
Press (or press and hold) the assigned programmable
key to recall the pre-programmed priority channel
directly. This is pre-programmed by your Vertex Stan-
dard dealer.
A
DVANCED
O
PERATION
