Vertex Standard EVX-531 Operating Manual page 11

 Rotate the VOL/PWR
knob to set the volume
level. If no signal is
present on the analog
channel, press and hold
in the SIDE-1 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 SIDE-1
button more than 2 seconds (or press the SIDE-1
button twice) to quiet the noise and resume nor-
mal (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.
EVX-531 O M
pErating
o
pEratIon
anual
 Press the (Orange) TOP
S E L k e y o r S I D E - 2
button to activate one
of the pre-programmed
functions which may
have been enabled at the
time of programming
by the dealer. See the
next section for details
regarding feature avail-
ability for this radio.
 If a Speaker/Microphone
is available, remove the
plastic cap and its two
mounting screws from
t h e r i g h t s i d e o f t h e
transceiver, then align
t h e c o n n e c t o r o f t h e
Speaker/Microphone
on the radio; secure the connector pin using the
screws supplied with the Speaker/Microphone.
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
EVX-531
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