VX-4500/-4600 S
ERIES
O
PERATING
M
ANUAL
7
B
ASIC
O
PERATION
OF
THE
T
RANSCEIVER
Important!
- Before turning on the radio the first time, confirm that the power con-
nections have been made correctly and that a proper antenna is connected to the
antenna jack.
Switching Power ON/OFF
Press and hold in the
PWR
(
) button for 2 seconds to turn the radio on. The
display will become illuminated.
Press the [
]/[
] key to choose the desired operating channel. A channel name
will appear on the display.
In the
VX-4600
, if you want to select an operating channel from a different
group, press the
PF
(Programmable Function) key which is programmed to the
Group Up/Down feature to select the group you want before selecting the oper-
ating channel. See page 8 for more information on the Programmable Function
keys.
Setting the Volume
Turn the
VOL
knob clockwise to increase the volume, and counterclockwise to
decrease it.
Transmitting
To transmit, monitor the channel and make sure it is clear.
THIS IS AN FCC REQUIREMENT!
Press the
PF
key which is programmed to the Monitor feature to listen for chan-
nel activity.
When receiving a call, transmit only after the incoming call ends. The radio
cannot receive a call and transmit simultaneously.
Press the
PTT
switch.
If the channel is clear, the
TX/BUSY
indicator will glow red. The radio is now
transmitting. While holding in the
PTT
switch, speak across the face of the micro-
phone in a clear and normal voice. For best transmission, hold the microphone
about 1-1/2 to 2 inches away from your mouth. Release the
PTT
switch to receive.
If the Busy Channel Lockout feature has been programmed on a channel, the
radio will not transmit when a carrier is present. Instead, the radio will generate
a short beep three times and the
VX-4600
indicates “
CH BUSY
” on the display.
Release the
PTT
switch and wait for the channel to be clear of activity.
If CTCSS or Digital Coded Squelch (DCS) Lockout has been programmed on a
channel, the radio can transmit only when there is no carrier being received or
when the carrier being received includes the correct CTCSS tone or DCS code.
