Vertex Standard VX-4000 Series, Operating Manual

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Page 5
VX-4000 Operating Manual
B
ASIC
O
PERATION OF THE
T
RANSCEIVER
Important! - Before turning on the radio the first time, confirm that the power connec-
tions have been made correctly and that a proper antenna is connected to the antenna jack.
Switching Power ON/OFF
Push the POWER switch turn on the radio. The display will become illuminated. The
radio will start up on the last channel used prior to shut-down during the previous
operating session.
Turn the
CHANNEL
selector knob to choose the desired operating channel. A chan-
nel name will appear on the display. If you want to select the operating channel from a
different Memory Channel Group, press the
UP
(
p
) or
DOWN
(
q
) button to select
the Memory Channel Group you want before selecting the operating channel.
Setting the Volume
Turn the VOLUME knob clockwise to increase the volume, and counterclockwise to
decrease it. If no signal is present, press and hold in the MON button more than 1/2
seconds; background noise will now be heard, and you may use this to set the VOL-
UME knob for the desired audio level. Press and hold the MON button more than 1/2
seconds to quiet the noise and resume normal (quiet) monitoring.
Transmitting
To transmit, wait until the “
BUSY
” indicator is off (the channel is not in use), and
press the
PTT
(Push-To-Talk) switch on the side of the microphone (the “
TX
” indica-
tor will appear or the “
TX
” indicator will glow red). While holding in the
PTT
switch,
speak across the face of the microphone in a clear, normal voice level, and then release
the
PTT
switch to receive.
Selecting Groups and Channels
m
Press the UP (
p
) or DOWN (
q
) button (repeatedly, if necessary) to select a
different group of channels.
m
Turn the CHANNEL selector knob to select a different channel within the current
group .
Automatic Time-Out Timer
If the selected channel has been programmed for automatic time-out, you must limit
the length of each transmission. While transmitting, a beep will sound five seconds
before time-out. Another beep will sound just before the deadline; the “
TX
” indicator
will disappear and transmission will cease soon thereafter. To resume transmitting,
you must release the
PTT
and wait for the “penalty timer” to expire (if you press the
PTT
before this timer expires, the timer restarts, and you will have to wait another
“penalty” period)