(
CESSNA
MODEL R182
SECTION
7
AIN,PLANE
&
SYSTEMS
DESCRIPTIONS
the transmitter, by the transmitter selector switch. As
an example, if
the
number I transmitter.is selected, the audio amplifier
in the associated
NAV/COM
receiver is
also selected, andfunctions asthe
amplifierforALL
speaker audio.
In the
event
the
audio amplifier in use fails,
as evidenced
by
loss
of all speaker audio
and
transmitting
capability of the
selected
transmitter, select another transmitter. This
should re-establish speaker
audio and transmitter operation. Since headset audio is
not affected
by
audio amplifier operation,
the
pilot
should be aware that, while
utilizing a
headset, the only
indication of audio
amplifier failure is loss
of the
selected
transmitter.
This can be verified by switching to the speaker function.
AUTOMATIC
AUDIO SELECTOR SWITCH
A toggle switch,
labeled AUTO, can be used to automalically
match the
appropriate
NAV/COM
receiver
audio to the transmitter being selected.
To utilize this
automatic feature, leave
all NAV/ COM
receiver
switches in
the OF F
(center) position,
and
place
the AUTO selector switch in either
the
SPEAKER,
or PHONE
position,
as desired.
Once
the AUTO
selector switch
is
positioned,
the
pilot
may then select any transmitter and its
associated
NAV/COM
receiver audio simultaneously
with
the transmitter selector
switch.
If automatic audio selection
is not
desired, the AUTO selector
switch
should b'e
placed
in the OFF
(center)
position.
NOTE
Cessna
radios
are equippedwith sidetone capability
(mon-
itoring
of the operator's
own voice transmission).
Sidetone
will be heard on either the airplane speaker or a headset
as
selected with the AUTO selector switch.
Sidetone may be
eliminated by
placing
the
AUTO
selector switch in the
OFF
position,
and utilizing the
individual
radio
selector
switches.
AUDIO SELECTOR
SWITCHES
The audio
selector switches,
labeled NAV/COM
1, 2 and 3
and ADF 1
a,nd.2, allow
the
pilot
to initially
pre-tune
all
NAV/COM
and ADF
receivers,
and
then individually
select and listen to any receiver
or
combination
of
receivers. To listen to a specific
receiver, first
check
that
the
AUTO selector
switch
is in the OFF
(center) position,
then
place
the
audio selector
switch corresponding
to that receiver in either
the
SPEAKER
(up)
or
PHONE
(down)
position.
To turn off the audio of the
selected
receiver,
place
that switch
in the
OFF
(center) position.
If
desired,
the audio
selector
switches can be
positioned
to
permit
the
pilot
to listen
to
one
receiver on
a headset
while the
passengers
listen to another receiver
on
the airplane
speaker.
The ADF
1 and 2
switches
may
be
used
anytime ADF audio is
desired. If
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7-43
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