Vertex Standard VX-4000L, Руководство по обслуживанию, Страница: 4 / 80

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VX-4000 VHF Low-band Service Manual
Operating Manual Reprint
B
ASIC
O
PERATION OF THE
T
RANSCEIVER
Important! - Before turning on the radio the first time,
confirm that the power connections have been made cor-
rectly and that a proper antenna is connected to the an-
tenna 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 channel 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
VOLUME
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 micro-
phone (the “
TX
” indicator 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 (re-
peatedly, 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
” in-
dicator 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.)