VX-450 S
ERIES
O
PERATING
M
ANUAL
13
Rotate the
VOL/PWR
knob to set the volume
level. If no signal is
present, press and hold in
the
SIDE-1
button (un-
der the
PTT
switch)
more than 2 seconds;
background noise will
now be heard, and you
may use this to set the
VOL/PWR
knob for the
desired audio level. Press
and hold the
SIDE-1
button more than 2 seconds
(or press the
SIDE-1
button
twice
) to quiet the
noise and resume normal (quiet) monitoring.
To transmit, monitor the
channel and make sure it
is clear.
Press and hold the
PTT
switch. Speak into the
microphone area of the
front panel grille in a normal voice level. To re-
turn to the Receive mode, release the
PTT
switch.
Press the (Orange)
TOP
SEL
key to activate one
of the preprogrammed
functions which may
have been enabled at the
time of programming by
the dealer. See the next section for details regard-
ing the available features.
O
PERATION
The Channel Announcement Feature works as described below
(1) In the
VX-454/459
radio:
The maximum number of channels is 512 (32 channels maximum per group). The radio announces the
channel number digit by digit.
For example, “Channel 1” is announced as “one” and “Channel 10” is announced as “one zero”.
(2) In the
VX-451
radio:
The maximum number of channels is 32 (16 channels maximum per group). The radio announces
Channels 1 - 9 by digit, while Channels 10 - 16 are announced by number.
For example, “Channel 10” is announced as “ten” and so on.
