4
PTT
(
P
USH
T
O
T
ALK
)
Switch
Press this button to transmit when you are operating
in the “
COM
” band. Release this button to return to
the “R
ECEIVE
” mode.
MONITOR
Switch
This button may be pressed to “open” the squelch
manually, allowing you to listen for very weak sig-
nals. Press and hold this button for 2 seconds to “open”
the squelch continuously. Press this button again to
resume normal (quiet) monitoring.
LAMP
Switch
Press this switch momentarily to activate the back-
lighting lamp for the display. Press and hold this switch
for 2 seconds to activate the back-lighting lamp con-
tinuously. To turn the lamp off, press this switch again.
The
LAMP
switch may be configured in several ways
via the Menu.
MIC/EAR
Jack
You may connect the supplied
CT-60
Headset Cable
or the (optional)
MH-44
A4B
Speaker/Microphone to
this jack.
Never connect any Speaker/Microphone that
is not recommended by the manufacturer. Be-
cause these jack connections are unique, using a
Speaker/Microphone that is not specified by Vertex
Standard may damage the
VXA-210
. Accessories for
the Vertex Standard Amateur or Vertex Standard Com-
mercial radios will not work with the
VXA-210
.
EXT DC
Jack
When an external 12-Volt DC power source is avail-
able, you may connect the (optional)
E-DC-5B
Ex-
ternal DC Cable here.
Do not connect any wire to
this jack if that wire is connected directly to a 28-
Volt DC source
. Connecting the
VXA-210
directly to
a source which exceeds 15.0 Volts DC will result in
damage to the unit.
Operating Manual Reprint
(Partial)
C
ONTROLS
& C
ONNECTORS
MIC
/SP
EXT
DC