Cessna 152 - Page 201

PILOT'S
OPERATING
HANDBOOK
SUPPLEMENT
CESSNA
300
NAV/COM
(TYPE
RT-385A)
glide
slope
deviation
pointer
caused
by
propeller
interfer-
ence.
1.
COM
OFF/VOL
Control
--TURN
ON.
2.
SPEAKER/PHONE
(or
AUTO)
Switch
(on
audio
control
panel)
--
SET
to
desired
mode.
3.
NAV
Frequency
Selector
Knobs
--
SELECT
desired
operating
frequency.
4.
NA
V
VOL
--
ADJUST
to
desired
audio
level.
5. ID-VOX-T
Switch:
a.
To
Identify
Station
--
SET
to
ID
to
hear
navigation
station
identifier
signal.
b.
To
Filter
Out
Station
Identifier
Signal--
SET
to
VOX
to
include
filter
in
audio
circuit.
6.
ARC
PUSH-TO/PULL-FROM
Knob
(If
Applicable):
a.
To
Use
As
Conventional
OBS
--
PLACE
in
center
detent
and
select
desired
course.
b.
To
Obtain
Bearing
TO
VOR
Station
--
PUSH
(ARC/PUSH-TO)
knob
to
inner
(momentary
on)
position.
NOTE
ARC
lamp
will
illuminate
amber
while
the
course
card
is
moving
to
center
with
the
course
deviation
pointer.
After
alignment
has
been
achieved
to
reflect
bearing
to
VOR,
automatic
radial
centering
will
automatically
shut
down,
causing
the
ARC
lamp
to
go
out.
c.
To
Obtain
Continuous
Bearing
FROM
VOR
Station
--
PULL
(ARC/PULL-FR)
knob
to
outer
detent.
NOTE
ARC
lamp
will
illuminate
amber,
OBS
course
card
will
turn
to
center
the
course
deviation
pointer
with
a
FROM
flag
to
indicate
bearing
from
VOR
station.
7.
OBS
Knob
(If
Applicable)
--
SELECT
desired
course.
1
July
1978
7