Vertex Standard VX-820ATEX, Руководство по эксплуатации

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VX-820ATEX S
ERIES
O
PERATING
M
ANUAL
11
Rotate the
VOL/PWR
knob to set the volume
level. If no signal is
present, press and hold in
the
MONITOR button
(under 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
MONITOR
button more than 2 seconds (or press the MONI-
TOR 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 mi-
crophone area of the front
panel grille (above the upper left edge of the LCD)
in a normal voice level. To return 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.
If a Speaker/Microphone is available, remove
the plastic cap and its two mounting screws
from the right side of the trans-
ceiver, then align the connector
of the Speaker/Microphone on
the transceiver body; secure the
connector pin using the screws
supplied with the Speaker/Mi-
crophone. Hold the speaker
grille up next to your ear while
receiving. To transmit, press the
PTT switch on
the Speaker/Microphone, just as you would on
the main transceiver’s body, and speak into the
microphone on a normal voice level.
1) Do not remove/install the Speaker/Mi-
crophone in a potentially explosive at-
mospheres.
2) Save the original plastic cap and its mount-
O
PERATION