VX-450 S
erieS
O
perating
M
anual
25
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
(programmed 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.
In the
VX-454/-459
, when the Lone Worker feature
is activated, the “ ” icon will be indicated on the
display.
g
roup
u
p
/d
oWn
(
Vx-454 & 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 & 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 & 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 di-
rectly. This is pre-programmed by your Vertex Stan-
dard dealer.
a
dVanced
o
peratIon
