VXA-220 PRO VI O PERATING MANUAL
3
CONTROLS & CONNECTORS
(
TOP PANEL
)
Antenna Jack
This SMA jack accepts the supplied flexible antenna,
or another antenna designed to provide 50 Ohm im-
pedance on the Aircraft Communication Band.
MIC/EAR Jack
You may connect the supplied CT-96 Headset Cable
or the (optional) MH-44B4B Speaker/Microphone to
this jack.
1) Never connect any Speaker/Microphone
that is not recommended by the manufac-
turer. Because these jack connections are unique,
using a Speaker/Microphone that is not specified
by Vertex Standard may damage the VXA-220.
2) Do not allow the VXA-220 to become submerged
in water while the rubber cap over the MIC/EAR
jack is removed.
DIAL Selector Knob
This 20-position detented rotary switch tunes the op-
erating frequency or selects the memory channels.
This rotary switch also adjusts the audio volume level
by the setting of the Secondary function of the
[
5
(
DIAL/
)]
key. See page 18 for details.
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