5
controls & connectors
(
top panel
)
Antenna Jack
This BNC connector jack accepts the supplied ex-
ible antenna, or another antenna designed to provide
50 Ohm impedance on the Aircraft Communication
Band.
MIC/EAR
Jack
You may connect the supplied
CT-96
Headset Cable
or the (optional)
MH-44
B4B
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 specied
by Yaesu may damage the
FTA-230
.
2) Do not allow the
FTA-230
to become sub-
merged in water while the rubber cap over the
MIC/EAR
jack is removed.
DIAL
Selector Knob
This (outer) 20-position detented rotary switch tunes
the operating frequency or selects the memory chan-
nels.
This rotary switch also adjusts the audio volume
level by the setting of the Secondary function of the
[
5
(
DIAL/
)]
key. See page 21 for details.
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